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English Mechanic and world of science

Mis en ligne par Denis Blaizot le samedi 11 avril 2009

Toutes les versions de cet article : [English] [français]

Ces revues ne font pas à proprement parler partie de ma collection. Je les ai trouvées dans un lot de revues d’information scientifique françaises de la même époque.

Tous ces numéros sont à vendre

Vol XLV
N°1150 - 8 April 1887

  • ARTICLES :
    • A Screw-chasing Arrangement adapted to an Ordinary Foot Lathe
    • The Theory of Machines. - VI.
    • The Amateur Workshop. - XXXVI
    • The « Nori » Patent Vertical Multitubular Boiler
    • Steno-Telegraphy
    • Train Signalling Apparatus
    • Diet and Training
    • Striffler’s Patent Brake-Holder
    • Edison’s Experiments in Sea Telephone
    • Apparatus for Obtaining the Density of Solids
    • How to Eat Wisely
  • Scientific News
  • LETTERS (from 27045 to 27082) :
    • The Astronomical Directory of M. Lancaster — Endowment for Observation at Great Altitudes - A Great Telescope and a small Squabble - A Year’s Work at the U.S. Naval Observatory - Is Mind Material ? - Aperture and Magnifying Power - Kepler’s Third Law - Astronomy and Mathematics - Saturn - Surveyor’s Chain - Driving Clock for Telescope.
    • Saturn New Laboratory Tromp
    • Saturns Shadow - Encke’s Division - On the Proper Motions of Beta, Gamma,Delta,Epsilon, Dzeta Ursa Majoris, and Alcor - Astronomical
    • Hercules - The L.AS. Report - Testimony against the Rocks
    • Wimshurst Machine with Double Sectors
    • The Otter - A Good Word for« Ours » - A Handy Camera Indurated Fibre - A Libel on the Eskimos
    • Heat, Force, &c. - That Pressures are Dynamic Effects - On Primary Batteries and on Charging Accumulators from them - Medical Electricity - My Rupture Truss - Aqueous Vapour - Structure of Arachnoidiscus E.
    • Raising Water - Mandrels - Lathe Matters, very Various - Lathe Matters
    • Cutting Grooves - Niblett’s Screwing Apparatus - Colour - Blindness, and Ignorance of Colour Names - Railway Signal Lights - Brakes
    • The Brake Question - Odic Force - Electrical Therapeutics - Medical Electricity - Memorandum on Watches - Putty and Stopping - Scales in Drawing Offices
  • Replies to Queries
  • Unanswered Queries
  • Queries (from 62157 to 62200)
  • Answers to Correspondents
  • Chess

N°1151 - 15 April 1887

  • ARTICLES :
    • Petroleum and its Uses
    • Duplex Telephony
    • The Theory of Machines. - VII
    • Yarrow’s Guide - blade Screw Propeller
    • Fifty Years of Yacht - Building
    • Massey’s Patent vice
    • Witter’s Improved Bevel
    • Loss of Heat from Steam Pipes
    • On Nickel Plating
    • Portable Dark Tents
    • Varnishing Incandescent Lamps
    • The Action of Certain Waters on Lead Pipes
    • Physiological Action of Nitrous - Oxide Gas
    • The Making of Britain
  • Useful and Scientific Notes
  • Scientific Societies :
  • Royal Astronomical Society
  • Western Microscopical Club .
  • Scientific News
  • LETTERS (from. 27083 to 27114) :
    • Astronomical - Saturn - Is Jupiter Self-Luminous ? - The Aperture and Magnifying Power of Telescopes - Saturn - Observing Double Stars by Daylight
    • Amateurs’ Saw Table - Lathe Mandrels
    • The« Edmunds »Lathe Mandrel
    • Making Twist Drills - To« Country Parson » - Wenham’s Sorewing Apparatus - Scraps from my Workshop
    • The Star Hack-Saw - of Coils in Armatures - A Good Word for« Ours, »and Sundry other Matters - The Manufacture of Crystal Spheres - On Primary Batteries and on Charging Accumulators from them
    • Indian Kites - Optical Phenomenon - Metallic Sash-cord
    • Midland Engines, No. 30 Class - Some Express Runs I - Railway Brakes - Colour-Blindness and Colour Tests - Harbour Loans and Construction
    • Wimshurst Machine with Double Sectors - Odic Force - The Supernatural Darkness on the first Good Friday - Enlarging Holes - Aqueous Vapour
  • Replies to Queries
  • Unanswered Queries
  • Queries (from 62201 to 62227)
  • Answers to Correspondents
  • Chess

N°1152 - 22 April 1887

  • ARTICLES
    • The Hardening and Tempering of Steel
    • Battery Residues
    • Chromic-acid Compounds in the Battery
    • Reproducing Photographs in Printing Presses
    • The Theory of Machines. - VIII.
    • The Safety Saddle
    • Dryden’s Boring Machine
    • Orienting Objects in Paraffin
    • Varying Mitres
    • ’The Oxy-hydrogen Zirconia Light
    • Trees from a Sanitary Aspect
    • How to Keep Tools, &c in Condition
    • The Montaud Accumulator
  • Scientific Societies : Liverpool Astronomical Society
  • Scientific News
  • Useful and Scientific Notes
  • LETTERS (from 27115 in 27155)
    • The Celestial « Mrs Harris » - A « Catastrophe » Happily Averted - The Eclipse of the Sun of August 19th - Meteoric Action on the Moon - Binocular Telescopes - Parabolic Reflectors - Nitrate of Silver Stains - The « Journal » of the Royal Microscopical Society - Observing Double Stars by Daylight - The Supernatural Darkness on the first Good Friday - Can Stars be seen in the Daytime from the Bottom of a Well ?Beta Leonis - Saturn - Saturn’s Outer Ring and Shadow, and Request.
    • The Dark Ring of Saturn - Selenographical - Mercator - Cleft near Hippalus - Agatharcides - Astronomical - Saturn - The Great Southern Comet
    • Star-drift in Pegasus and Aquarius - Is Mind Material ? - On Primary Batteries
    • Plates for Wimshurst’s Machine
    • A Simple Hygrometer - Medical Electricity - Portable Hand Dynamo - Aqueous Vapour - Incandescent Lamps - Pressures Dynamic Effects ? - Lathe Matters
    • Wenham’s Screwing Apparatus
    • Niblett’s Screw-cutting Apparatus - A Method of Cutting Racks - The Corrugated Chuck
    • A Lathe Planer for Five Shillings - The Shrinkage of Castings - Varnishing Cremona Violins - A Correction - Railway Brakes
    • Loose Joints of Rails on Railways - Railway-signal Lights - Colour-Blindness - The Aperture and Magnifying power of Telescopes - The Supernatural Darkness on the First Good Friday - Blowpipes - Crystals - Petroleum.
  • Replies to Queries
  • Unanswered Queries
  • Queries ( from 62228 to 62268)
  • Chess
  • Answers to Correspondents

N°1153 - 29 April 1887

  • ARTICLES
    • The Moon and the Weather
    • Reviews
    • Electric Locomotion
    • Astronomical Notes for May, 1887
    • Phillips’s Improved Mandrels
    • New Planer and Surface Gauge
    • The Medico-legal Aspects of Hypnotism
    • Zincography and Zinco Printing Plates
    • Mechanical Foolhardiness
    • Frankland’s Electrical Storage Battery
    • Diamond Ink for Writing on Glass
    • A New Mercury Pump
  • Scientific Societies : Royal Meteorological Society
  • Useful and Scientific Notes
  • Scientific News
  • LETTERS (from 27136 to 27195) :
    • Uranus and Vesta - Errata - Visibility of the Great Comet of 1880 - Jupiter’s First Satellite - Notes on Nebulæ
    • Optical Phenomena - Nebula near Alpha Virginis - On Primary Batteries for Lighting - Massey’s (or Entwisle and Kenyon’s) Vice - The Catastrophe of 5,000 Years Ago
    • Some Express Runs II - Railway Speeds and Mythe - Express Trains - Continuous Brakes - Railway Brakes Suspended Fish - Plates for Rail Joints - Another Screw - chasing Apparatus - Lathe Mandrels
    • A Bell Chuck - The Standard Mandrel
    • Lathe Matters - Titanium Ore - Platinum in Filings - Butterine - Silica in Fluor Spar - Hardening and Tempering Steel - The Sextant and its Uses - Decay of Timber - Scraps from my Work-hop - The Woodturner’s Hand Planer
    • A Good Hand-drill - Chinese Paper Varnish - Medical Electricity - Electro-Plating - Gas-Tar Coating - Ammeter by Bottone - « Journal » of the Royal Microscopical Society
    • Dynamic Effects - Optical Phenomenon - Supernatural Darkness - Aqueous Vapour
    • The Supernatural Darkness of the First Good Friday - On the Laws, Reactions, and Construction of some Forms of Primary Batteries - On Magnetism and its Powers
  • Useful and scientific notes
  • Replies to Queries
  • Unanswered Queries
  • Queries (from 62269 to 62319)

N°1154 - 6 May 1887

  • ARTICLES
    • An International Screw Thread
    • The Preparation of Phosphoric Acid
    • Gas-lighting by Electricity
    • New Uses for Coal-tar
    • On a New Photo-micrographic Camera
    • Ryder’s Automatic Microtome
    • A Good Record for a Turning Tool
    • Combination Tool for Squaring, Levelling , &c
    • How to make a Pocket Accumulator
    • The Hydrophone
    • The Thermopile and Secondary Batteries as a Convenient Means of Producing Electricity for Medical and Surgical
    • Batteries Oxalic Acid for the Separation of Various Metals
  • Scientific Societies : ’Royal Microscopical Society
  • Scientific News
  • LETTERS (from 27196 to 27230) :
    • The Journal of the Royal Microscopical Society - Can Stars be seen in the Daytime from the Bottom of a Well ? - The Supernatural Darkness of the First Good Friday - Astronomy and Mathematics - Large Field Eyepiece - Gegenschein - Specific Gravity, the Sextant and the Sun - Lunar Clefts - Parochial Law - Telescope - Legal : Do as You are Tolled - The Great Lick Equatorial - White Patch on the Moon.
    • Aqueous Vapour and Steam - On the Laws, Reactions, and Construction of some Forms of Primary Batteries - New Form of Whetstone Bridge
    • Microscopical - Rock - crystal Spheres - Optical Phenomenon - Lathe Matters .
    • Lathe Screwing Apparatus - A Eye-inch Lathe Head - Twist Drill Making to « Country Parson » - Trigonometry to « E.L G. » - Niblett’s Screwing Apparatus
    • Iguana Skin - The Supernatural Darkness of the First Good Friday - Magnetic Unit - A Warning - The Sextant and its Uses - Some Express Runs III. - Brakes - Engine-Drivers’ Eyesight
    • The Breaking of Driving-axles - Design for Hot-air Engine - That Pressures are Dynamic Effects - A French Bath-heater - Literary Statistics
    • A Compress Pad - The Limelight - Slag Refuse
  • Replies to Queries
  • Unanswered Queries
  • Queries (from 62320 ta 62374)

N°1155 - 13 May 1887

  • ARTICLES
    • Popular Meteorology
    • Experiments with Artificial Vortices
    • Fletcher’s Improvements in Steam-raising and Water-heating
    • The Theory of Machines. - IX .
    • The Influence of Tea, Coffee, and Cocoa on Digestion
    • Death by Electricity
    • Safety Set-screw for Collars and Pulleys
    • A Screw Centre Chuck
    • Erhard’s Circulating Battery
    • Using the Grindstone
    • Card-mounted Flexible Glass Films
    • Electroplating Flowers and Insects
  • Scientific News
  • Useful and Scientific Notes .
  • LETTERS (from 27231 to 27267) :
    • Nova Orionis (1885), &c. - A Bright Star seen at Mid-day from the Bottom of a Coal Pit - Stars from Bottom of Well - Posidonius
    • Journal of the Royal Microscopical Society - An Old Escapement - The Sex,ant and its Uses - A Workshop Knife - A Roomy and Comfortable Tent
    • Continuous brakes - N.E.R Express - A Remarkable Railway Collision
    • Some Express Runs IV - Rail-way Speeds - Workshop Scraps - Good Metal - The Catastrophe of 50 Centuries Ago
    • Niblett’s Screwing Apparatus - Lathe Matters - A Good Hand-Drill - Chasing Screws
    • Screw-cutting - Vertical Cutting and Drilling Frame Combined - The Edmund’s Lathe Mandrel
    • Varying Mitres - On Primary Batteries and on Charging Accumulators from them
    • Hardening and Tempering Steel - Theory of Periodic Inundations - Science and the Supernatural
    • Messrs. Schott and Co.’s New Optical Glass - Soldering
    • Burnt Air - Primitive Tools and Weapons - Aqueous Vapour and Steam - Short Sight
    • Designs for Hot-air Engine
  • Replies to Queries
  • Unanswered Queues
  • Queries (from 62375 to 62409)

N°1156 - 20 May 1887

  • ARTICLES
    • Electric Motors and Electric Railways
    • The Theory of Machines. - X.
    • Colouring Rubber Fabrics
    • Water-level Indicator for Steam Boillers
    • Newall’s Improved Machine Drill
    • Stanley’s Patent Artist’s Clinometer
    • Apparatus for Determining the Specific Gravity of Liquids
    • New Method of Fixing Sections to the Slide
    • Tool Carriages
    • The Bulb Mite
    • Papyrotint
    • Porous Pots for Batteries
    • The Electro-osteotome
  • Scientific Societies :
    • Royal Astronomical Society
    • Liverpool Astronomical Society
  • Useful and Scientific Notes
  • Scientific News
  • LETTERS (from 27268 to 27306)
    • Erratum - Regulus and Sigma Orionis - Exposure of an Objectglass to Damp - Rhubarb - Geology of the Suffolk Coast - Dioptric Telescope - Sunspots - Projecting the Sun’s Image to Determine Personal Equation - Professor Abbe on Sunspots - Photographic Measurement of Stellar Parallax - A Correspondent who cannot let Well alone - Lunar Clefts - Huyghenian Eyepieces fer a 33in. Object-Glass - A Bad Objective - Trigonometry - Aplanatic Eyepiece
    • Nova Orionis - Astronomical - Stars Visible in Daylight - A Cure for Rheumatism - Science and the Supernatural - Theory of Periodic Inundations
    • Are there Periodic Inundations ? - Divisions of Human Nature
    • New Form of Wheatstone Bridge - Hot-air Engine - « Silke’s » Screwing Devices - Loss of Life at Sea - The« Punkah »or Wind-fan of India
    • Cardboard Plates for the Wimshurst Machine - Short Sight - A Device for Cutting Grapes - Hook Pools
    • Two Eclipses in One Day (Supernatural) - The Supernatural Darkness on the First Good Friday - Railway Brakes Brakes - Loose Joints of Rails on Railways - The Accident near Harringay Park - Norwegian Gimlets - Siemens’ Bathometer
    • The Edmunds Lathe Mandrel .
    • Standard Lathe Mandrel - The Lathe at Saltaire
    • The Essex Chuck - Counterbalancing Flywheel of Lathe - Jubilee Science - Aqueous Vapour - Burnt Air - Diatoms in The Thames - Diatoms - The Sextant and its Uses - Stars Visible from Wells - On the Laws, Reactions, and Construction of some Perms of Primary Batteries
  • Replies to Queries
  • Unanswered Queries
  • Queries (from 62410 to 62457)
  • Chess
  • Answers to Correspondents

Vol XLVII


N°1207 - 11 May 1888 (ce numéro ne fait plus partie de ma collection)

  • ARTICLES
    • Extracts from Bergeron - V
    • Microscopical Advances. - XXXVI
    • Coloured Photographs
    • Universal Cutting Machines, by the London Lathe and Tool Company
    • Langfield’s Method of Heating Trains
    • Sunter’s Improved Screws
    • Experiment, Illustrating the Principle of the Dynamo. - II
    • Gerlach’s Embryoscope
    • Machine Designing - II
  • Useful and Scientific Notes
  • Scientific Societies : Manchester Microscopical Society
  • Scientific News
  • LETTERS (from 28716 to 28739) :
    • The Stars in the Trapezium of Orion - Saturn
    • R Coronæ - Earth’s Motion - The Southern Heavens and Earthly Gradients - Flat Earth v. Round Earth
    • The Glacial Period and the Moon’s Water - Survival of the Fittest
    • Chemical Manure Making - Electric Alarum Clocks - Gravity Leclanché - The Samuel Morley Memorial Fund - Direct Transformers and Induction Coils
    • New Inductorium or Transformer : to Mr. Perren-Maycock - A Good Blowpipe - Turret Clocks - The Front-slide Lathe-bed - To « O. J. L » : Pole-lathe Spinning - High - speed Governors - Pure Mathematics
    • People’s Kitchens - Force and Energy to « F.R.A.S. » - The Angle of the Side of the Great Pyramid - Some Little-known Plants of the « Flora Medica »
  • Replies to Queries
  • Unanswered Queries
  • Queries ( from 65266 to 65329)
  • Answers to Correspondents

N°1208 - 18 May 1888

  • ARTICLES
    • Practical Electric- Bell -Fitting. - XL
    • The Iron and Steel Institute
    • Willars’s Improved Spanners
    • Friction
    • The Mechanics of a Liquid
    • Improyed Primary Battery
    • Carmine Injection
    • Celloidin as a Microscopical Accessory
    • Mechanical Dentistry
  • Scientific Societies :
    • Royal Astronomical Society
    • Astronomical Society of France
    • Western Microscopical Club
  • Scientific News
  • LETTERS (from 28740 to 28759)
    • O Tempera O Mores ! - The Lick Observatory - The Lunar Eclipse of 1888, Jan. 29th - A Modest Demand for a Star Catalogue - The Trapezium of Theta Orionis : Big v. Moderate Telescopes - Longitude in the Southern Hemisphere - Resenting a Definition of Force with too much Energy - The Terminology of Mechanical Science - Conversion of R.A and Dec. into Celestial Longitude and Latitude - Saturn - Mars
    • Chemical Manure Making - A Good Blowpipe - Some Little-known Plants of the « Flora Medica » - Pure Mathematics - Centre of Gravity - Cosines of Very Small Angles - The Bœhm Flute - Some Continental Organs - An Illusion Dispelled
    • The Continuous Brakes Return - Certificates for Enginemen - Turret Clocks
    • Pictorial Composition - Dynamo Brushes - Economical Press - The Glacial Period and its End
    • Flat Earth - Geometric Chuck - Model Gas-Engine
  • Replies to Queries
  • Unanswered Queries
  • Queries ( from 65330 to 65388)
  • Answers to Correspondents

N°1209 - 25 May 1888

  • ARTICLES
    • Extracts from Bergeron. - VI
    • steward’s New Textile Threads
    • Astronomical Notes for June, 1888
    • Gearing. - XV
    • M . Boys’ Experiments with Soap Bubbles
    • The Crank’s Story
    • How to Catch and Preserve Moths and Butterflies
    • Details of Blacksmithing
    • Substitutes for Gum sand Rubber
    • The New Hydrocarbon Engine
  • Scientific Societies : Royal Meteorological Society
  • Scientific news
  • LETTERS (from 28760 to 28783)
  • Cheops and His Pyramid
    • The New Red Star near Alpha Cygni - A Mock Sun - Damoiseau - Turret Clocks - The Isosceles Triangle - Price’s « Universal » From slide and Ganting Head Lathe
    • Metal Spinning - Evolution
    • Survival of the Fitrest - Olive-Trees and the Deluge - Pictorial Composition - « Force » and « Energy » - The Organ in the First Presbyterian Church, Baltimore, M.D.
    • The Organ Builder : II. - Continental Organs - Some Little-known Plants of the « Flora Medica » .
    • Pure Mathematics - Mathematical Paradoxe - On Violins Universal Geared Cutting Frame - Certificates and Strikes - Alkali Manufacture by Electricity
  • Replies to Queries
  • Unanswered Queries
  • Queries (from (5359 to 65437)
  • Chess
  • Answers to Correspondents

N°1210 - 1 June 1888

  • ARTICLES
    • Microscopical Advances. - XXXVII
    • On the « E. M » and Other Telephones
    • Gearing. - XVI.
    • Vian’s Electro-Motor
    • A Rotary Tool Post
    • Experiments Illustrating Chemical Chemical and Physical Change
    • Raub’s Thermo-Electric Battery
    • The Uses of glycerine
    • Personal Identification and Description
    • Eder’s Orthochromatic Collodion Emulsion
    • in Improved Form of Gas Apparatus
    • Testing Lenses
  • Scientific Societies :
    • Liverpool Astronomical Society
    • Royal Microscopical Society
  • Useful and Scientific Notes
  • Scientific News
  • LETTERS (from 28784 to 28810) :
    • The Soirée of the Royal Society on May 9th - Converting B.A end Dec. into Longitude and Latitude - The American Nautical Almanac - The Zodiacal Counterglow - An Attempt to Comet too b - A Questionable Way of bringing Doubters Round - Evolution - Simple Weighing Machine - Distorted Image of Sun in Sextant - Dialling : Led Worse by Lead better - Force and Energy - Mathematical Paradoxes
    • Mars - Jupiter - Conjunction of Jupiter - The Afterglow - Continental Organs - Water - Wheels and Turbines - TurretClock Making
    • The Entelechiascope - A Very Old Force in the Guise of a New Motor - Dynamo Brushes - Hints to Inventors
    • A Flat Earth Impossible - Flat Earth - The Isosceles Triangle - « Force » and « Energy » - Organs - Evolution - Space of Four Dimensions
    • Impossibility of Mankind being Derived from One Common Ancestor - Evolution - Olive Trees, and Extinction of the Fittest - Nature of Molecules
    • Suction and Forcing Fans - The Railway - Signal Returns - Geometric Chuck
    • Price’s Universal Lathe - Some Little-known Plants of the « Flora Medica » - Apocryphal Organs - The Bœhm Flute : II.
  • Replies to Queries
  • Unanswered Queries
  • Queries (from 15438 to 65495)
  • Chess
  • Answers to Correspondents

N°1211 - 8 June 1888

  • ARTICLES
    • Practical Electric- Bell - Fitting. - XII.
    • Photography in Colours
    • The Omni-Telemeter
    • Gearing. - XVII
    • Improvements in Induction Coils or Transformers
    • Rickinson’s Self-fixing Castors
    • Bleaching Ivory, Bone, and Feathers
    • The Greenwich Visitation
    • A Home-made Incubator
    • Earthquakes, and How to Measure Them
    • Diphtheria and Mould Fungi
    • Experiments in Static Electricity with the Incandescent Lamp
    • Details of Blacksmithing
    • Cole’s Self-Inking Printing Press
  • Scientific News
  • LETTERS (from 28811 to 28838) :
    • In Search of a Government Grant - Jupiter - The Comet - Tables for Conversion of Sun’s Longitude into Right Ascension - A Rejected Process
    • Cape Colony and Emigration - « The Organ of the Future » - Water-Wheels and Turbines
    • Propulsion of Steamships - Compensated Pendulum - Impossibility of Mankind being Derived from One Common Ancestor
    • Evolution - Price’s Universal Lathe
    • Lathe Matters - The Pyramid Angles - Some Little-known Plants of the « Flora Medica » - Dynamo Brushes - Locomotives : Craven’s « Improved » - « F.R.A.S. » and the Scriptures - A Very Old Force in the Guise of a New Motor - « The Entelechiascope » - Turret-Clocks - Steam Boilers - Pure Mathematics - Mathematical Paradoxes - Logic and Mathematics - Mr. Dyer’s Diagram of the Earth - « E.L.G.’s »Deluge
    • Alternate Submergences of North and South - The Solar - System Molecule
  • Useful and Scientific Notes
  • Replies to Queries
  • Unanswered Queries
  • Queries ( from 65496 to 65568)
  • Chess
  • Answers to Correspondents

N°1212 - 15 June 1888

  • ARTICLES :
    • Extracts from Bergeron - VII
    • Softening and Purifying Water
    • Improved Process of Tinning
    • Instantaneous Shutters
    • Electrical Influence Machines
    • Soap-Bubble Solutions and a Slide for Observing SoapBubble Films
    • Steam between Scraped Surfaces : Brandon’s Piston Packing
    • Something about Reamers
    • Decomposition of Water and Absorption of Carbon Dioxide by Caustic Soda
  • Useful and Scientific Notes
  • Scientific Societies : Royal Astronomical Society
  • Scientific News
  • LETTERS (from 28839 to 28868) :
    • Greenwich in the Rear in the Photographic Rare - In Search of a Government Grant - Tables for the Conversion of the Sun’s Longitude into Right Ascension - « F.R.AS. »and the Scriptures - Red Sky at Sunset - Old Telescopes
    • Sawerthal’s Comet - The Comet of 1760 - Mars - Occultation of a Star by Jupiter - Converting Sun’s Longitude to Right Ascension - Price’s Front - slide Lathe - Model Gas-Engine
    • The Front-slide Lathe - Internal Gear for Lathe - Lathe Matters : Substitute for Back - gear - Object-Glasses and other Matters
    • Compensated Pendulums and Turret Clocks - Turret-Clocks - Pure Mathematics - Some Little - known Plants of the Flora Medica - The« Liverpool »Locomotive - An Ancient Railway Ticket - Non - Miraculous Geology
    • The Chemist not a Creator - Impossibility of Mankind being Derived from One Common Ancestor - Evolution - Noah’s Deluge
    • Nature of Molecules - A Laughing Plant - Zinc Tubes for Compensated Pendulums - Propulsion of Steamships
  • Replies to queries
  • Unanswered Queries
  • Queries ( from 65569 to 65636)
  • Chess
  • Answers to Correspondents

N°1213 - 22 June 1888

  • ARTICLES :
    • Practical Electric- Bell -Fitting - XIII
    • Dr. Vogel’s Isochromotic Plates
    • Improvement in Dynamos
    • Experiment in Capillary Attraction
    • Foundry Cupolas
    • Protection of the Human Body from Dangerous Currents
    • An Automatic Still
  • Useful and Scientific Notes
  • Scientific News
  • LETTERS (from 28869 to 28901) :
    • Comet Sawerthal - Occultation of a Star by Jupiter
    • The Chemist not a Creator - Bible Readers - Evolution - Whitewash - Leona Dare - Genesis and its Meaning - Evolution : a Disclaimer - Soda Crystals v. Soda Ash - Blast Furnaces
    • Evolution - Problem in Maxima and Minima - Mathematical Paradoxes
    • A Mathematical Puzzle - « E.L.G. » on « Non-Miraculous Geology » - Cheops’ Pyramid - Pure Mathematics - FourDimensioned Space - Genesis and Science - An Organ - Science v. Philosophy, Ancient and Modern - Organs and Organists
    • Joseph Jewsbury’s Differential Back Gear - Spar-Working - Focusing Motion - Object-Glass Working
    • A Laughing Plant - Some Little-known Plants of the Flora Medica - Turret Clocks - How to Live for Ever
    • The Bœhm Flute : III. - Fan Ventilation of Mines .
    • The Stoat - Nature of Molecules - Water - wheels and Turbines - Induction Coils - Thunderstorms and Lightning Accidents - Propulsion of Steamships - Occultation of a Star by Jupiter - Safety Rear - Drivers .
  • Replies to Queries
  • Unanswered Queries
  • Queries (from 65637 to 65691)
  • Chess
  • Answers to Correspondents

N°1214 - 29 June 1888

  • ARTICLES
    • Extracts from Bergeron - VIII
    • Improvements in Transformers
    • Astronomical Notes for July, 1888
    • Protection of Buildings from Lightning - I
    • Practical Details of Punch Work
    • Platinum Printing without Development
    • Technical Instruction : the Professor and the Student
  • Scientific Societies : Royal Meteorological Society
  • Scientific News
  • LETTERS (from 28902 to 28937) :
    • Encore the Afterglow - Making a Telescope - The Conjunction of Jupiter and Beta Scorpii on May 21st - Astronomical Eyepieces - Focal Length of Specula - The Meteorite Theory shown to be Meteor Wrong - The Draper Memorial Fund : Stellar Spectra - A Public house on Mount Hamilton - Tables for Converting Latitude and Longitude into Declination and Right Ascension - Derivation of Man from Several Uncommon Ancestors - Noah’s Archetype of the Great Eastern - Diameters of the Fixed Stars - Natural History Divisions - Work on Entomology - Genesis and its Meaning - Evolution - Problem in Maxima and Minima - What is the « Fittest » ? - Reality of the External World - Transit
    • Safety Lamps - The Fatal Thirteen - How to Live for Ever - Pure Mathematics - The External World
    • Object-Glass Matters - Price’s Universal Front-slide Lathe
    • Lathe Matters - Internal Gear for Lathe - The Glacial Period and its Cause - Noah’s Flood an Accident
    • Creation in Genesis not too Plain - Evolution
    • Evolution : Ancient Philosophers - Evolution : Erratum - Blast Furnaces - Soda Crystals v. Soda Ash - The Chemist not a Creator
    • Problem in Maxima and Minima - A Mathematical Puzzle - The Four Dimensions Vagary - Neglect of Logical Exactness - Mistakes - Space of Four Dimensions - Evolution and the Bible - Turret Clock - making
    • The Square Root of - 4 an Impossible Quantity - Polishing Calc-spar - A Laughing Plant - Leona Dare - The Term « Trace » in Solid Geometry - Nature of Molecules - How to Live for Ever - Methylated Spirits : a Caution - Some Little-known Plants of the Flora Medica
    • The Otter Domesticated
  • Replies to Queries
  • Unanswered Queries
  • Queries (from 651392 to 65746)
  • Chess
  • Answers to Correspondents

Vol XLVIII

N°1232 - 2 November 1888

  • ARTICLES :
    • Electric-Bell Construction. - IV
    • Electric Lighting and Electric Street Railways
    • Mower’s Secondary Battery
    • The « Fumoperpurgans » Pipe
    • Cheap Apparatus for Generating Sulphuretted Hydrogen
    • Gallagher’s Tricycle
    • A Pocket Camera
    • Photographic Engraving on Glass, and ether Applications of Fluorine in Photography
    • Making Wheels
    • A Device for Cutting Racks
    • Arsenic in the Home
  • Scientific Societies : Royal Microscopical Society
  • Scientific News
  • Useful and Scientific Notes
  • LETTERS (from 29353 to 29377) :
    • An Areographical Mare’s Nest - New Catalogue of Variable Stars - Scintillation and Astronomical Refraction - Aurora Borealis - Planispheres - Conversion of Declination and Hour Angle into Altitude and Azimuth - The Physical Aspect of Jupiter - The Earth’s Interior - Large Equatorial Stand - The Belgian Royal Observatory - The First Rift in the Mount Hamilton Lute
    • The November Meteors - A Large Meteor - Vaccination juggling with Statistics
    • Homœopathy : to W. J. Grey - Cyanide of Mercury and Diphtheria - Joe in the Bottle - « Who Invented the Camera ? » - Clock Trains
    • Primitive Industry - Amphipleura pellucida - Substage Condensers - Bacillaria Paradoxa and other Diatoms - « True versus False Images in Microscopy » and Pleurosigma Angulatum
    • Pancratic Eyepieces - Food Reform - Chest Types - Vipers and their Bites - The Serpollet Generator - The Evolution
    • Question : Why I am Collecting Facts ?
  • Replies to queries
  • Unanswered Queries
  • Queries ( from 66843 to 66908)
  • Chess
  • Answers to Correspondents

N°1233 - 9 November 1888

  • ARTICLES :
    • Microscopical Advances : XXXIX
    • Reviews
    • Photographic Films
    • Octave Coupler for Pianoforte
    • Tools for Turning Straight and Taper in the Lathe
    • Soli’s Windmill
    • A System of Worm Gearing of Diametral Pitch
    • Alloys. - III
    • Apparatus for Fractional Distillation in Vacuum
    • Scientific Facts and Fancies
    • Foundry Work
  • Scientific News
  • LETTERS (from 29378 to 29394) :
    • Theta (1) and Theta (2) Tauri - Nova Orionis - Comet Barnard Zodiacal Light : to « F.R.AS. »
    • The Great Lick Telescope
    • Twist of Trees - Finding the Latitude and True Meridian - Vertical Slide to Lathe - joe in the Bottle - Vaccination
    • Balloons - Who Invented the Camera ? - Equatorial Stand
    • Astro-Eyepiece Adjustment - The Amphipleura pellucida - To « A Learner » - A New System of Agriculture - Brain Pictures
    • South-Western Locomotive : No. 348 - Food Supply v. Population - Clock Trains
  • Replies to Queries
  • Unanswered Queries
  • Queries (from 66909 to 66977)
  • Chess
  • Answers to Correspondents

N°1234 - 16 November 1888

  • ARTICLES
    • Extracts from Bergeron (Vol. II.) - XVI
    • The Use of Aluminium Alloys
    • McKellen’s Detective Camera
    • Pratt’s Electro - Therapeutic Belt
    • Alloys - IV
    • Cheap Carbons for Batteries
    • Practical Details of Blacksmithing
    • Little’s Combination Gauge
    • How to Prove that the Earth Turns
  • Scientific Societies : Astronomical Society of France
  • Scientific News
  • Useful and Scientific Notes
  • LETTERS (from 29395 to 29415) :
    • Changes on Mars - Utilisation of Celestial Photography - Classification of Variable Stars - Astronomical Terminology - Perimeter of Oval - Measuring Distances - « Mene huio Cenfidere Monstro ? » - The Astronomy of the Times
    • Astronomical - Microscopical : the Back of the Objective and the Condenser
    • Structure of a Diatom Valve - Propulsion of Ships - Primitive Industry - Blacksmithing - Vaccination
    • Vaccination : Juggling with Statistics - Bicycles
    • Brain Pictures - A New System of Agriculture - Continuous Brakes - Hutchinson’s Vertical Slide - Lathe Head
    • Clock Trains - Daniell Cells as a Source of Electricity for Small Installations of Electric Light
    • Chest Types - Beri-Beri
  • Replied to Queries
  • Unanswered Queries
  • Queries ( from 66978 to 67036)
  • Chess
  • Answers to Correspondents

N°1235 - 23 November 1888

  • ARTICLES
    • Microscopical Advances : XL
    • The Production of Oxygen and Nitrogen from the Atmosphere
    • Gearing. - XXV
    • Parkinson’s Parallel Vice
    • The Magic Chain
    • Faure’s Improved Secondary Battery
    • Tool Lifter for Planer
    • Hanley’s Compound Rotary Motion
    • Phenomena of Magnetic Propagation
  • Scientific Societies : Royal Astronomical Society
  • Scientific News
  • LETTERS (from 29416 to 29438) :
    • Changes on Mars - The Astronomy of the Times - A Cheap Observatory
    • Vaccination : Joggling with Statistics
    • Vaccination - The Bœhm Flute : IX. - Organ Matters
    • Stocks and Dies - Propulsion of Ships and Boats - The Accidents at Dinting Junction - Accidents to Platelayers - A Simple Correction for Curvature of Image
    • Structure of a Diatom Valve - Objectives - Penetration - November Fogs - A New System of Agriculture - A Brilliant Experiment - Heat and Fat - Some Little - known Plants of the « Flora Medica »
    • A Spark from the Human Body
  • Replies to tueries
  • Unanswered Queries
  • Queries (from 67037 to 67097)
  • Chess
  • Answers to Correspondents

N°1236 - 30 November 1888

  • ARTICLES :
    • Electric-Bell Construction. - V
    • Rickinson’s Billiard Table Adjuster
    • Astronomical Nota for December, 1888
    • Electro-Motors : how Made and how Used. - T
    • Cutlan’s Tool for Spiral Turning
    • Sparking in Dynamos
    • Gas Enriching Apparatus
    • Experiments in Superficial Tension
  • Scientific News
  • LETTERS (from 29139 te 19456 )
    • The Late Mr. Rand Capron - Perimeter of Oval : Eccentric Mensuration - Formula for Finding T - Hour Angle - The Structure of the Stellar Universe - Rule Britannia - Echo - The Swell-Box and Organ Matters
    • Vaccination : Joggling with Statistics
    • Clock Trains, Tide Hand, and Striking - November Fogs - Propulsion of Ships and Boats - Microscopic Objectives Penetration
    • A Spark from the Human Body - A Stupid Rattlesnake - L. and S.W.R. Locomotives - Leather and Cotton Belts - Low Angle Lenses : to Mr. Nelson - Permanent Way
    • « joe in the Bottle »
  • Useful and Scientific Notes
  • Replies to Queries
  • Unanswered Queries
  • Queries ( from 67098 to 67163)
  • Chess
  • Answers to Correspondents

N°1237 - 7 December 1888

  • ARTICLES
    • Extracts from Bergeron (Vol. II.) - XVII
    • Hosken’s Draw - Bar Hook and Coupling
    • Extracting Broken Screws
    • Designing Dynamos and Motors
    • Practical Details of Blacksmithing
    • A Month on Meal and Water
    • Scientific Recreations
    • Bookbinding
    • Howard’s Centring Apparatus
  • Scientific News
  • Useful and Scientific Notes
  • LETTERS (from 29457 to 39475) :
    • « Nova » Orionis - Barnard’s Comet (e 1883) - Microscope Objectives - Penetration - Bull’s - eye Condenser and Mirror (67151) - High v. Low Apertures in Microscope Objectives
    • Vaccination : Juggling with Statistics
    • Vaccination - Propulsion of Ships and Boats - Primary Batteries for Incandescent Lamps - Domestic Electric Lighting - « joe in the Bottle »
    • Clock Trains - Jinman’s Law of Storms - A Laths Packing - Gauge
    • The Home Manufacture of Cameras - The Temperature of November - November Fogs
  • Replies to Queries
  • Unanswered Queries
  • Queries (from 67164 to 67234)
  • Chess
  • Answers to Correspondents

N°1238 - 14 December 1888

  • ARTICLES
    • Notes on the Concert-Room Organ : XI
    • Electro-Motors : how Made and how Used. - II
    • Magic-Lanterns
    • Dr. Crookes’s Method of Treating Auriferous Ores
    • The Influence of Chemical Composition on the Strength of Bessemer-Steel Tires
    • Manufacture of Russian Sheet Iron
    • An Improvement in Milling Cutters .
  • Scientific News
  • LETTERS (from 29476 to 29494) :
    • Finding a Star from its Co-ordinates - Local Time of Transit of the Pole Star - Comet v. Cab-horse - Formula for Finding Hour Angle - Supposititious Telescopic Power - Angular Aperture - Adjusting an Equatorial - Catalogue of Variable Stars - Jinman’s « Law » of Storms - Diatoms in the Thames Estuary .
    • Domestic Electric Lighting - Primary Batteries for Lighting - Clock Trains - Double Roller Escapement - Cuckoo Clock : to « E.L.G. » - Permanent Way
    • Recent Accidents and Continuous Brakes - A Suggestion - Propulsion of Ships and Boats
    • Cheap Taps - Microscope Objectives : Angular Aperture - « joe in the Bottle » - Silver-Plating
    • Marionettes
  • Replies to Queries
  • Unanswered Queries
  • Queries (from 67235 to 67304)
  • Chess
  • Answers to Correspondents

N°1239 - 21 December 1888

  • ARTICLES :
    • Microscopical Advances : XLI
    • Improvements in Dyeing a Fast Black
    • Screw - Pitch Threads and Terms used to Describe them
    • A Simple Spectroscope
    • Simple Experiments in Physics
    • On Science as a Recreation
    • Curious Optical Illusion
    • A New Pullman Car Train
  • Useful and Scientific Notes
  • Scientific Societies :
    • Royal Astronomical Society
    • Astronomical Society of France
  • Scientific News
  • LETTERS (from 29495 to 29510) :
    • The Lick Telescope : to Mr. Brashear - The Moon’s Albedo
    • Cords and Pulleys v. Gearing - A Microscopist’s Table - The History of a Young Rotifer - A Month on Meal and Water - Sparks from the Human Body - Clock Trains - Primes
    • Propulsion of Ships and Boats - Marionettes - Shoemaking : I.
    • The Bœœhm Flute : X. - Aeronautics
    • Conservation of Energy - Silver - Plating : II.
  • Replies to Queries
  • Unanswered Queries
  • Queries (from 67306 to 67357)
  • Answers to Correspondents

N°1240 - 28 December 1888

  • ARTICLES :
    • Extracts from Bergeron (Vol. II.) - XVIII
    • The « Sundale » Twist-Drill Grinder
    • Gearing. - XXVI
    • Astronomical Notes for January, 1889
    • Engraving with the Sand-Blast
    • Simple Experiments in Physics
    • Friction of Loco. Slide-Valve
    • A Gas-Tar Garden
    • A Petroleum Rocket Boat
    • A Perfect Substitute for Glass as a Support for Gelatine Bromide of Silver for use in Photography
    • Practical Details of Blacksmithing
  • Scientific Societies : Royal Meteorological Society
  • Scientific news
  • LETTERS (from 29511 to 29521) :
    • Errata - Jinman among the Prophets - The Lick Observatory and its well - advertised work - Finding the Cubic Capacity crf Variously - shaped. Vessels - Detection of New Nebulæ by Photography - Mr. Roberts’s Photograph of 31 M Andromedæ - The Coming Solar Eclipse - The New Astronomer Royal for Scotland - The Moon’s Albedo - Light - Eyepieces for 3in. Object-Glass - « The Companion to the Observatory » - Domestic Electric Lighting .
    • The Sinus Iridum - Inflation of Balloons - Aeronautics - Apparatus for Stopping the Loom when the Warp Threads are Broken - To keep Infusoria and Rotifera Alive
    • A Month on Meal and Water - Shoe-Making : II. - Conservation of Energy - Extracts from Bergeron
    • Propulsion of Ships and Boats - Couples as Applied to Engines - Clock Trains
  • Replies to Queries
  • Useful and Scientific Notes
  • Unanswered Queries
  • Queries (from 67359 to 67387)
  • Chess
  • Answers to Correspondents

N°1241 - 4 January 1889

  • ARTICLES
    • Electric- Bell Construction. - VI.
    • The Progress of Astronomy in 1883
    • Photo-Micrographic Apparatus
    • Gearing - XXVII
    • Lightning and its Effects
    • Simple Experiment. in Physic’s
    • On a Compensating Pendulum
    • Weston’s Apparatus for Utilising Solar Radiant Energy
    • Heating Steel
  • Scientific Societies : Royal Microscopical Society
  • Scientific News
  • LETTERS (frees 29535 to 89544) :
    • A Remark as to the Foundation for some Astronomical Data - Triple Eclipses of the Sun by Jupiter’s Third Satellite - The Sinus Iridum
    • Ivory Cutting - Nature of Molecules - Clock Trains : to « J.K.P. » - Pendulam - Aëronautics
    • Yttria - A Month on Meal and Water - Medway - Diatoms - A Powerful Occasional Battery - The Laws of Storms - Home Manufacture of Cameras. A Popular Explanation of Interference-Phenomena - Conservation of Energy
    • Shoe-Making : III. - Lathe Matters
  • Replies to Queries
  • Unanswered Queries
  • Queries (from 67388 to 67453)
  • Answers to Correspondents
  • Chess

N°1242 - 11 January 1889

  • ARTICLES
    • Microscopical Advance - XLII
    • Electro-Motors : how Made and how
    • Modern Beer
    • Binn’s Tubular Pneumatic Action for Organs
    • Gas from Liquid Fuel
    • The Parachute and Atrial Engineering
    • Recent Advances in the Chemistry of Alkaloids
    • On the Absolute Vacuum as a Non-Conductor of Electricity, and the Important Bearing of the Fact upon Electric Theories
    • Simple Experiments in Physics
    • The Future of food
    • New Mixture for Separating Carbon from Pig-Iron, Steel, &c.
  • Scientific News
  • LETTERS (from 29515 to 2565).
    • Local Time of Transit of the Pole Star - Retrograde Orbits of the Satellites of Uranus and Neptune - The Laws of Nature - Position of the Vernal Equinox - The Structure of the Sidereal Universe - Grass on Gravel Walks and Macadamised Roads - Model - Engine Making
    • Some Astronomical Data - Posidonius - Sinus Iridum - Astronomy and the ENGLISH MACHANIC- The Path of the Moon for January - Propulsion of Ships and Boats and Lard Engines - Shoe-Making : IV
    • To G. H. Hurst (Letter 29543, p. 381) - Microscopic - An Improved Camera Obscura Lathe Matters
    • Jinman’s Law of Storms - Clock Trains - The Organ - Builder : IV. - A Popular. Explanation of Interference Phenomena
    • Aëronautics - Wetting Saws - Some Little - known Planta of the Flora Medica - On the Anhydrous Determination of Minerals - Natural Electricity
  • Useful and Scientific Notes
  • Replies to Queries
  • Unanswered Queries
  • Queries ( from 67454 to 67528)
  • Chess
  • Answers to Correspondents

N°1243 -18 January 1889

  • ARTICLES
    • Practical Electrical Testing. - I
    • Spong’s Patent Gas Utiliser
    • Gearing. - XXVIII
    • Siemens’ Tubular Steel Chains
    • Currie’s Illuminating and Lubricating Oils
    • The Compound Principle as Applied to Locomotives
    • Acton’s Pressure Regulator
    • The Indian Basket Trick
    • Wright’s Novel Primary Battery
    • Simple Experiments in Physics
    • A Conical Drum Windlass
  • Scientific Societies : Royal Astronomical Society
  • Useful and Scientific Notes
  • Scientific News
  • LETTERS (from 29566 to 29582) :
    • The Path of the Moon for January - Lunar Objects - Position of the Sun at the Vernal Equinox - Large Telescopes - Shoe-Making : V. - To « Jock of all Trades »
    • The Bœhm Flute : XI. - Inflation of Balloons - ærial Engineering - Light : Visibility of Objects, Colour and Phosphorescence
    • Pathogenetic Effects of Vaseline - Coal Gat Battery : Electrical - Micro - Photography - Propulsion of Ships:and Boats and Land Engines - Clock Trains - Acoustics
    • The Home Manufacture of Cameras
  • Replies to Queries
  • Unanswered Queries
  • Queries (from 67519 to 67579)
  • Chess
  • Answers to Correspondents

N°1244 - 25 January 1889

  • ARTICLES :
    • Microscopical Advances - XLIII
    • Woodruff’s Method. of Screw Propulsion
    • Triple Dissolver for Magic Lanterns
    • Beard’s Patent Automatic - Regulator for Gas-Cylinders
    • Armb’s Fastenings for Bolts and Nuts
    • Genius and Ill-health
    • The Amphitrite
    • Simple Experiments in Physics
    • Testing Triangles and Squares
  • Scientific Societies : Royal Meteorological Society
  • Useful and Scientific Notes
  • Scientific Notes
  • LETTERS (from 29583 to 29599) :
    • Light - Astronomical Telescope - ’The Indian Basket Trick - Ostrich and Emu Eggs - Adjusting a Transit Instrument in the Meridian
    • Alpha Orionis - Lunar Eclipse - Beta Leonis - « NOVA Orionis » - U Orionis - Zodiacal Light - Dimension, of tho Jovian System - Duration of Tricentral Total Eclipses of the Sun by Jupiter’s Third and Fourth Satellites - The Ratio of Silver to Gold
    • The Organ - Builder : V. - Coal. Gas Battery - The Binomial Theorem - Motion of Rotifora after (Death ?) - Shoe-Making : VI
    • Batteries for Bells and Lights - Preventing Crutches Slipping - Some Little-known Plants of the Flora Medica
    • Compound Goods Loco. for the G.E.R. - Propulsion of Ships and Boats - Sour - Kraut
  • Replies to Queries
  • Unanswered Queries.
  • Queries (from 67556 to 67687)
  • Chess
  • Answers to Correspondents

N°1245 - 1 February 1889

  • ARTICLES :
    • Notes on Nebulæ. - X
    • Cleansing Cloth and other Fabrics
    • Phipps’s Reflecting Cameras
    • Astronomical Notes for February, 1189
    • Making Corliss Engine Cylinder Patterns. - I.
    • The Positive Cyanotype Process
    • Simple Experiments in Physics
    • Colds and Clothing
  • Scientific Societies : Royal Microscopical Society
  • Scientific News
  • Useful and Scientific Notes
  • LETTERS (from 29600 to 29617) :
    • Comet Brooks 1 of 1889 - U Orionis - Lunar Objects - H IV. 73 - Coil - Making Practically Considered .
    • Light : Visibility of Objects, Colour and Phosphorescence Sauer - Kraut - Bimetallism
    • Selenographical : the Sinus Iridum, &c. - Adjusting a Transit Instrument in the Meridian - On the Action of Bisulphuret of Carbon in a Plating Solution - A New Depolariser - Clock Trains
    • Home Manufacture of Cameras - Coal-Gas Battery - Inflation of Balloons - The Binomial. Theorem - Paraffins - Reproduction of Diatoms
  • Replies to Queries
  • Unanswered Queries
  • Queries (from 67648 to 67716)
  • Answers to Correspondents
  • Chess

N°1246 - 8 February 1889

  • ARTICLES
    • Extracts from Bergeron (Vol. II.) - XIX
    • Electro-Motors : how Made and how Used. - IV.
    • Gearing. - XXIX.
    • Drenckhan’s Method of Condensing Milk
    • Brion’s Screw-Cutting Die
    • Boring Cylinder, with the Bar out of Line
    • Liquid Fuel for Locomotives
    • The New Gibson Storage Battery
    • Experiments in Capillary Force
  • Scientific Societies : Astronomical Society of France
  • Scientific News
  • Useful and Scientific Notes
  • LETTERS (from 19618 te 29635),
    • Dimensions of the Jovian System - Radiation and Convection of Heat - Dimensions of the Planets, as Affected by a Change - in the Solar Parallax - Transita of Venus and the Earth’s Concurrent Motion - Circular Planetary Orbits - The Equation of Tinte : the Earth’s Orbit - Field - lens for an Eyepiece for a 61/2in. Speculum - The Solar Eclipse of January lot - Adjusting a Transit Instrument in the Meridian. - Mensuration - The Origin and Distribution of Comets - Scintillation
    • Mercury Visible to the Naked Eye - Dimensions of the Jovian System - Zodiacal Light - Archimedes - Jinman’s « Law » of Storms - Some Little - known Plants of the Flora Medica - Simple Apparatus for Showing Difference Magnetically between Iron and Steel
    • A New Battery - A Suspension Treadle - The « Sacred Orifice » and the Running Centre
    • Rose Engines - To « F.A.M. » and Others - Batteries for Small Installations - Gas Batteries
    • Organ Matters - Tone Colour
    • Silence Caused by Sound - Vapour - Engine for Tricycle - Propulsion of Ships, Boats, and Land Engines
  • Replies to Queries
  • Unanswered Queries
  • Queries (from 67717 to 67782)
  • Answers to Correspondents.
  • Chess

N°1247 - 15 February 1889

  • ARTICLES :
    • Practical Electrical Testing. - II.
    • A Model Locomotive
    • The Decoration of China, Glass. &c
    • Schneider and Co.’s Improved Method of Tempering Steel
    • Practical Details of Blacksmithing
    • Simple Experiments in Physics
    • Clamond’s Button Telephone
    • Substances Liable to Spontaneous Combustion
    • Lummer’s Photometer
  • Useful and Scientific Notes
  • Scientific Societies :
    • Royal Astronomical Society
    • Western Microscopical Club
  • Scientific News
  • LETTERS (from 29636 to 29651) :
    • The Satellite of Algol - Saturn’s Satellites,Lunar Objects, &e. Concerning a Sensitive Flame - The Expansion of Implicit Functions - Anhydrous Analysis : II. - Boron Trioxide Thermochromatism
    • The Bœhm Flute : XII. - Light : the Conversion of Heat into Light - Chinese Screw - cutting Lathe
    • The « Sacred Orifice » and the Running Centre - Propulsion of Ships, Boats, &c. - Slip
    • Propulsion of æronautic Apparatus - The Odours of Animals - Winter Egg in Stephanoceros - The Phonographic Shorthand of the Future - A Suggestion - Electro-Motors : how Made, &c. : Errata
  • Replies to Queries
  • Unanswered Queries
  • Queries ( from 67783 to 67851)
  • Chess
  • answers to Correspondents

Vol XLIX

N°1260 - 17 May 1889

  • ARTICLES
    • Electric-Bell Construction. - X.
    • The Intensity of Telephonic Effects
    • Herbert’s« Eclipse »Patent Changing Back and Detective Camera
    • Whitney’s Improved Treadle Mechanism
    • Patent Safety Watch Bow
    • Some Uses of the Yielding of Metal to Pressure
    • The« National »Open-Circuit Battery
    • Smith’s Electric Meter
  • Scientific Societies :
    • Royal Astronomical Society
    • Astronomical Society of France
    • Western Microscopical club
  • Scientific News
  • LETTERS (from 29928 to 29948)
    • The City and Guilds of London Institute - The White Spot on Saturn’s Rings - The Meteoritic Theory and« F.R.AS. »- Velocity in Elliptic Orbit - The Planet Mars - The Corona, the Zodiacal Light, and the Aurora - Phrenology - The Mass of a Binary Star - Areas of a 25in. Object-Glass and of the Pupil of the Eve
    • Venus - 34 Boötis - R Coronæ - U Orionis - The White Spot on Saturn’s Ring
    • Venus - Astronomical - The Moon’s Albedo, &c. - An Old American Locomotive
    • Organ Matters : General Design in its Relation to Tone - Colouring - Organ Nomenclature - Hydraulic Organ Blower : Water Motors - Rose Engines - Ornamenting Irregular Surfaces - Cutter - Bars
    • The Haydon Bar - Geometrical Lathes - Rose Engines - Wagner’s Universal Rose Engines - Amateur Glass - Blowing
    • joe in the Bottle - Pseudoscorpionidea : Chelifer - Perspective Drawing - Fresh Eggs
  • Replies to Queries
  • Unanswered Queries
  • Queries (from 68628 to 68687)
  • Chess
  • Answers to Correspondents

Vol XLIX

N°1265 - 21 June 1889

  • ARTICLES
    • Electric-Bell Construction. - XI.
    • A Model Locomotive. - X.
    • Improvements in Pneumatic Machines
    • The Paris Exhibition
    • James’s Shunter’s Coupling Rod
    • Rigg’s Patent Water-Motor or Steam-Engine
    • The« Optimus »Wide-Angle Extension Camera
    • A Simple Air-Bath for Laboratory Use
    • Prevention of Magnetism in Watches
    • Details of Sweet’s 16in. Engine Lathe
    • Photo-Lithographie Transfers
    • ide’s Improved Lathe Chuck
  • Scientific Societies :
    • Royal Astronomical Society
    • Western Microscopical Club
    • Astronomical Society of France
    • Institute of Marine Engineers
  • Scientific News
  • LETTERS (from 30056 to 30074) :
    • Abnormal Appearance of a Star - White Spot on Saturn’s Rings - Prof. Judd and Lunar olcanœs - Permanganate of Potash and Dry Cells - A New Primary Battery
    • Batteries - Mercurial Regulators - Locomotives - Estimation of SO2 - Keen Sight - Small Church Clock Ornamenting Irregular Forms, &c.
    • Head Covering - First Railway in Scotland - Cutter-Bars - Bearings - Which End of an Electra - Magnet is the« Marked »or North Pole ? - Meteorological : Increase of Solar Heat - Concert Organ
  • Replies to Queries
  • Unanswered Queries
  • Useful and Scientific Notes
  • Queries (from 68690 to 66042)
  • Chess
  • Answers to Correspondents

Vol LI

N°1304 - 21 March 1890

  • ARTICLES :
    • Practical Electrical Testing. - IX.
    • Boring, Drilling, and Surfacing Machine
    • Nicol’s Improvements in Photographic Printing
    • Ivory Composition
    • Scharf’s Gas Battery
    • Robbins’s Pipe Wrench
    • Stanley’s Arc - Light Alternating - Current Dynamo
  • Scientific News
  • LETTERS (from 30949 to 30986) :
    • Tides - Trigonometry - Barometric Measurement of Heights and Reduction to the Sea - Level - Diameter and Circumference of a Circle - Soli-Lunar Cycles - The Sun’s Diameter - Finding Objects with an Equatorial - Computation of Cometary Orbits by Olbers’s Method - Mars - The Mètre - Altering a Sundial - Considerable North Latitude of a Sunspot - The Belgian Royal Observatory - Calculation of Easter
    • Elongation of Gamma² Andromedæ - Walter - The Asteroids - Detachment of Planets from the Sun - The Nebular Hypothesis and Limitation of Time - Laplace and the Nebular
    • Hypothesis - The Moon and the Church Calendar - Flats . Flat Mirrors and Telescope Tubes - Sound Theory and Unsound Arithmetic - Magnetic Facts and Fancies
    • Mr. Audsley and Squared Distance of Sound - Law of the Inverse Square in Acoustics Sound Matters - The New Theory of Sound
    • The New Sound Theory and Dr. Hall’s« Arithmetic » ! - Squaring the Circle - Test of Divisibility by 37, &c. - The Carlisle Accident
    • A Handy Help for Poultry Keepers - Diamonds as Boring Tools - The Wedge Photometer - Calculation of Easter - Aberration of Light - Boots and Shoes - Blowing Water out of Boilers . An Improvement in Small Chamber - Organs - The Steel of the Forth Bridge
  • Replies to Queries
  • Unanswered Queries
  • Queries (from 71038 to 71080)
  • Chess
  • Answers to Correspondents

N°1305 - 28 Mars 1890

  • ARTICLES :
    • Botany for Students
    • Imparting a Pearly Appearance in Colours
    • Astronomical Notes for April, 1890
    • Dividing Appliance for Engineers
    • Acoustics : a Review of the Old and New Theories of Sound. - II.
    • A New Gravity Cell .
    • Practical Details of Blacksmithing
    • Photo-Lithography and the New Albert Photo-Lithographic Transfer Paper
    • The Scientific Use of the Phonograph
    • Cleaning Diatoms
  • Scientific Societies :
    • Royal Meteorological Society
    • Royal Astronomical Society
    • Royal Microscopical Society
  • Useful and Scientific Notes
  • Scientific News LETTERS (from 30987 to 31011) :
    • On a New Star Seen near Alpha Herculis in the Year 1849 Gamma² Andromedæ - The Nebular Hypothesis - Detachment of Planets from the Sun - Curious Sunset - Zincs for Batteries - North-Eastern Single Compounds - The Ratio of the Circumference to Diameter by Metius
    • Squaring the Circle - Portable Drilling Machine .
    • Price’s Slide - Rest and Vertical Slide for Milling - Drilling Hard Stones - Engraving the Stones of the Breastplate - Monthly Notices of Royal Astronomical Society - Faint Companions to Double Stars - The Weather Forecasts - Flat Mirrors and Telescope Tubes .
    • Matters Optical - Oblique (?) Lunar Rays - Flats Photo. Lenses - The Astronomical Telescope of the Future - Flat Mirrors - Lunar Image, &c. - The New Theory of Sound - Calculation of Easter
    • An Ornamental Slide - Rest - Primrose Pollen under the Microscope - « Amateur’s »Organ - Building - Boots and Shoes - Small Electro-Motors and Dynamos : to« Ibn u1 Najm »- Colour - Blindness in Railway Servants .
  • Replies to Queries
  • Unanswered Queries
  • Queries (from 71081 to 71145)
  • Chess
  • Answers to Correspondents

Vol LIV

N°1387 - 23 October 1891

  • ARTICLES :
    • Lathework for Amateurs. - VIII
    • How to Make a Violin. - V.
    • Chemistry for Students. - II.
    • Practical Microscopy for Students. - IV.
    • A New Mechanical Process for Resetting Blunt Files
    • Siemens’s Improved Electro-Motor
    • Cailletet’s Cryogen
    • Parallel Motions
    • A Simple Form of Electric Motor
    • Electro-Microscopic Slide for Testing the Antiseptic Power of Electricity
    • Heath’s Changeable Speed Gearing
  • Scientific Societies : Quekett Microscopical Club
  • Scientific News
  • LETTERS (from 32825 to 32845) :
    • A Remarkable Meteor - A Large Meteor - Wolf’s Comet - Numbering of Pi Orionis - « F.R.AS. » and Prof. Vince - Peculiar Rainbows - Violin - Making - Artificial Incubation
    • Incubators - To« Sigma »
    • The Principles of Harmony
    • Pneumatic Tires - Cable Tramways - Re the Vacuum - Chiming Clock
    • A New Gas Engine - Extempore Micro - Erector - Wasted Food - Winding Magnets - Scientific Advertising
  • Replies to Queries
  • Unanswered Queries
  • Queries (from 75604 to 75672)
  • Chess
  • Answers to Correspondents

N°1388 - 30 October 1891

  • ARTICLES
    • Boring Holes in Long Posts
    • Astronomical Notes for November, 1891
    • Geology for Students
    • Practical Hints in Boiler Design. - IV.
    • The Swell in the Organ. - II.
    • Moor’s Improved Blowpipe
    • Recovering Tin from Waste Tin-Plate
  • Scientific News
  • LETTERS (from 32846 to 32565) :
    • Copernicus - Lunar Radiant Heat - Mr. S. W. Burnham’s Latest Double - Star Catalogue - The New Superintendent of the« Nautical Almanac »- Heliometer - Telescopes : and Twaddle - Ring Micrometer - Sidereal Watch - The Twelve Brightest Stars - Telescopic Field - Astronomical Eyepieces - The Zodiacal Light - Precession - Dr. Common and Myself - Diameters of Jupiter’s Satellites - New Lunar Crater - Prof. Vince - Volcans in the Moon - Mean Distance of the Moon - Uranus and Neptune - « Flare » in Telescope - Shrubs and Telescopic Definition
    • The Lunar Eclipse Next Month
    • Rays, and a Volcanic Surfacing Inconsistent with Lunar Tides. The Two New Probably Variable Stars - The Structure of the Milky Way - Nu² Scorpionis - Lambda Ophiuchi - Test - Stars Wanted - Brilliant Meteor, 11th October - Solar Light - Radiated and Reflected Dark Rays of Heat - Terrestrial Crater-Rings - Jovian Latitudes - Power of Eyepieces - Incubators
    • Incubators - Scientific Advertising - A Cure for Diphtheria - Gas-Engine and Electric Lighting - A New Gas Stove .
    • Ether - Vacuum - Dialling, and the Ellipse - Chiming Clock Violin Making
    • Organettes :VIII.
  • Replies to Queries
  • Unanswered Queries
  • Queries (from 756773 to 75726)
  • Answers to Correspondents
  • Chess

N°1389 - 6 November 1891

  • ARTICLES :
    • Some Remarks on ærodynamics
    • Practical Microscopy for Students. - V.
    • The Lathe Index
    • Practical Photography for Amateurs
    • Fitting -VIII.
    • Hammering Saws
    • Novelties in Incandescent Lamps
    • Jordan’s Planer Chuck
  • Scientific Societies :
    • British Astronomical Association
    • The Lantern Society
  • Scientific News
  • LETTERS (from 32866 to 32889) :
    • Scientific Advertising - The Variable Nucleus of the Great Andromedæ Nebula, and an Anomalous Star near it - Other Variable Nebulæ and Anomalous Stars
    • The Lunar Eclipse Next Month - Jupiter - A Brilliant Meteor Meteor of October 11 - Comet Wolf - The Micrometrical Measurements of the Planets - A New Organ - Pipe - Dialling - Incubators
    • The Physical Basis of Music - The New Gas - Globe Stove
    • Organettes : IX.
    • The Cutting of Simple Microscopical Sections
    • Magic Squares
    • Stand Photographic Enlargements
    • Catgut for Clocks - Technical Gas Analysis
  • Replies to Queries
  • Unanswered Queries
  • Queries (from 75727 to 75799)
  • Answers to Correspondents
  • Chess

N°1390 - 13 November 1891

  • ARTICLES :
    • Practical Electric-Light Fitting, - IX
    • Geology for Students
    • « W. and R. » Patent Staple Driver
    • Practical Microscopy for Students. - VI.
    • Fire Extinguisher
    • The Lantern Microscope
    • A Simple and Efficient Gravity Hoist
    • Lessons in the Differential Calculus. - I.
  • Scientific News
  • Useful and Scientific Notes
  • LETTERS (from 32890 to 32909) :
    • The Height and Limit of the Atmosphere - Lunar Rotation and Tidal Action - The Sun’s Light - Radiated and Reflected Dark Rays of Heat - A Novel Eyepiece - Jupiter’s Satellites for Verifying Chronometer - Driving Clock - Astro-Photography - Jupiter - Reticle Micrometer - Personal Equation in Transit-taking - Section-Cutting Machine - The Astrolabe and Cross - Staff - Misty Object-Glass
    • The Variable Nucleus of the Great Andromedæ Nebula and an Anomalous Star near it - The Brilliant Meteor of October 11, 1891 - Star - Tests Wanted - Jupiter - The Telescope - A Divided Object-Glass - Epsilon² Lyræ
    • The Lathe Index - Incubators
    • Organettes (and Pianistas). - X.
    • Did the Ancient Egyptians Use Steel ? - A Chemical Application to Bicycles - Gas - Globes and Heating Apparatus The New Gas - Globe Stove - Mr. Bottone to His Friends - An Experiment with Incandescent Lamps - Some Curious Experiments with the Wimshurst Machine - Nicotine - How to Make a Violin
  • Replies to Queries
  • Unanswered Queries
  • Queries (from 75800 to 75860)
  • Chess
  • Answers to Correspondents

N°1391 - 20 November 1891

  • ARTICLES :
    • Clockmaking
    • Practical Microscopy for Students. - VII.
    • Fitting. - IX.
    • The Optical Lantern : its Construction and Use. - VII.
    • Practical Photography for Amateurs
    • How to Make a Violin. - VI.
    • Screw-Cutting Gauge
    • Edison’s Carbon Battery
    • A Seat Attachment for Bicycles
    • Lessons in the Differential Calculus. - II.
  • Scientific Societies : The Lantern Society
  • Scientific News
  • LETTERS (from 32909 to 32924)
    • Saturn - Brilliant Meteor, 11th October - The Lathe Index - Incubators
    • Magic Squares - Did the Ancient Egyptians Use Steel ? - Great Northern Goods Engines - L. & N.W. Railway’s Engine « Greater Britain »
    • Choosing a Pianoforte - Natural Drinks
  • Replies to Queries
  • Unanswered Queries
  • Queries (from 75861 to 75919)
  • Answers to Correspondents
  • Chess

N°1392 - 27 November 1891

  • ARTICLES :
    • Lathework for Amateurs. - IX.
    • Lantern Accessories
    • Practical Microscopy for Students. - VIII.
    • Astronomical Notes for December, 1891
    • A Shaping Attachment
    • Practical Hints in Boiler Design. - V.
    • Some New Experiments Illustrating the Nature of Flame
    • Chemistry for Students. - III.
    • Luminous Paints in all Colours
    • Settling a Quarrel by Fluoresceine
    • Mirror Lens
  • Scientific Societies :
    • Royal Astronomical Society
    • Quekett Microscopical Club
  • Useful and Scientific Notes
  • Scientific News
  • LETTERS (from 32925 to 32940) :
    • Projectiles, and the Rotation of the Earth - Heliometer - Angular Subtense of Field of Telescope - Astronomical Telescope - Mu Cephei - Unpublished Observations - Lengths of a Degree of Latitude and Longitude - The Sun’s Light
    • Brilliant Meteor of Nov. 19, 1891 - The Recent Eclipse of the Moon - Star Tests - Aurora - Sunspots Visible to Naked Eye - Communication between Ship and Shore - Incubators
    • Dialling : to Make a Sundial, Gnomon included, out of a Single Piece of taper - Magic Squares - Lantern Microscopy A Novelty in Violin Construction - Wimshurst’s Alternating Influence Machine
    • Technical Education
  • Replies to Queries
  • Unanswered Queries
  • Queries (front 75920 to 75972)
  • Chess
  • Answers to Correspondents

Vol LV

N°1405 - 26 February 1892

  • ARTICLES :
    • Clock-Wheel Cutting
    • Astronomical Notes for March, 1892
    • Practical Microscopy for Students. - XXI.
    • Chemistry for Students. - VII.
    • Handy Shop Tool
    • Extemporised Hand-Cameras
    • A New Form of Electric Measuring Instrument
    • Some Machine-Shop Devices
    • New Form of Plunge Battery
    • The Distribution of Power by Direct Currents
  • Scientific Societies :
    • Royal Meteorological Society
    • Quekett Microscopical Club
  • Useful and Scientific Notes
  • Scientific News
  • LETTERS (from 33208 to 33227) :
    • New Star in Auriga - Sunspots, Satellites, and Meteorites Extraordinary - Double Stars for March - Silvering Mirrors
    • Flexure of Mirrors - Telescope : To Mr. Gadd - Tapers - Heating Surface - Vertical Planer - Experiments in Electrostatics - Lines of Flow of Underground Water and of Faults - Guiana
    • In Memoriam :« J. K. P. »- The Products of Combustion from Gas - Stoves - Economical Method of Winding for Small Drum Armatures - Zymotic Diseases and Smoking - Violin Matters
    • Determination of Terrestrial Motion in the Line of Sight - The Deluge and a Water Comet
  • Replies to Queries
  • Unanswered Queries
  • Queries (from 76623 to 76700)
  • Answers to Correspondents
  • Chess

Vol LVI

N°1444 - 25 November 1892

  • ARTICLES
    • Psychology. - IV.
    • Astronomical Notes for December, 1892
    • Plating and Boiler-Making - II .
    • Cutting and Annealing Steel
    • Curare
    • An Adjustable Corner Shelf
    • Preserving Steel and Iron Bright
  • Useful and Scientific Notes
  • Scientific Societies :
    • Royal Meteorological Society
    • Royal Astronomical Society
    • Quekett Microscopical Club
  • Scientific News
  • LETTERS (from 34305 to 34326)
    • Educational Astronomy - « Nuts » devoid of Kernels - Jupiter - Rotation Periods of Mercury and Venus - Belief by one Man in a Myth anent Bitunen - Thaumaturgy - Pronunciation of« Isolate »- Bar Micrometer - Reflecting Stereoscope - Star Magnitudes - Woodside’s Projection of Occultations - Velocities of Planets in their Orbits - Kepler’s Third Law - Observing Solar Altitudes by Reflection from Water - Cometary Orbits
    • Jupiter’s Fifth Satellite - Jupiter’s Red Spot - Holmes’s Comet - The Proper Motions of the Stars
    • The Variation in Altitude of Equatorial Stars - Logarithms - The Welsh and America
    • Psychology, Sex, Dreams - A Brain Mystery : to Sigma"- A Useful Book - back Cover - The Modern Safety Bicycle and Brazing - Bicycle - Building
    • Independent Borers - « Time and Tide »- Microscope Low Powers - Fruit-Drying - Experiments in Electrostatics : XXIII.
    • Railway Curves : Cant and Coning of Wheel-Tires
  • Replies to Queries
  • Unanswered Queries
  • Queries (from 78930 to 78992)
  • Chess
  • Answers to Correspondents

N°1445 - 2 December 1892

  • ARTICLES
    • Elementary Practical Astronomy : - IX.
    • The Elements of Geometry. - V I.
    • Plating and Boiler-Making. - III.
    • Watertight Unions
    • A Microscope Objective, and Bow to Make It. - VI.
    • Mr. Astor’s Electric Launch
    • Index of Refraction
    • Slings, Hooks, and Tackle for Foundry Work
  • Useful and Scientific Notes
  • Scientific News
  • LETTERS (from 34327 to 343521) :
    • Double Stars - Holmes’s Comet - The Variation in Altitude of Equatorial Stars - Variation in Altitude, and Altazimuth Mounting - The Lunar Alps, Libration, &c.
    • The Lunar Walled Plains, experimentally considered - The Perseid Meteors - Stationary Meteor Clouds - Observatories Psychology - Psychic Force : to« Sigma »
    • Psychology : Miracles - Luminosity of Flame - The Welsh in America, &c. - Experiments in Electrostatics : XXIV .
    • To« F.R.AS. »- Fruit-Drying - Mechanical Cure for Hiccough« Time and Tide, »&c. - Dragons and Noah’s Ark
  • Replies to Queries
  • Unanswered, Queries
  • Queries (from 78993 to 79034)
  • Answers to Correspondents
  • Chess

N°1446 - 9 December 1892

  • ARTICLES
    • Psychology. - V
    • The Optical Lantern : its Construction and Use. - XIX.
    • Plating and Boiler-Making. - IV.
    • Notices of Books
    • Bouchet’s Mechanical Movement
    • Core-box for Draw-bar Patterns
    • The Chemistry and Preparation of Japanese Lacquers
    • Carr’s Combination Surface Gauge
    • Terrestrial Magnetic Storms
  • Scientific Societies : Royal Microscopical Society
  • Scientific News .
  • LETTERS (from 34353 le 34374)
    • Erratum - Air, Ether, or Neither ? - Lunar Rills - « Old and New Astronomy »- Limit of Accuracy in Sextant-Reading - Rotation Period of Mercury - An Impossible Heliometer - Logarithms - Why Not : indeed ? - A Non-existent Comet : and the Phenomena exhibited by a real one - The Variation in Altitude of Equatorial Stars - A Lunar « Meridional Shoal » - Comets in Space
    • Polaris and Small Telescopes - The Diameter of Holmes’s Comet - Jupiter
    • Variation in Altitude and Azimuth of Stars - Variable Star Observations, November, 1892 - Lunar Walled Plains - Saturn - Ephemerides - Some Cometary Phenomena - Cometary Discoveries
    • Meteor - Pronunciation of some Astronomical Terms - Psychology : Materialisation, Miracles
    • A 10in. spark Induction Coil - A Simple Way and Means of Winding Coils - The Nine Puzzle - Pigeons : re Darwin - The Melting Point - Railway Curves - Star Discs - Eyepieces
    • A Light for the Dark Mornings
  • Replies to Queries
  • Unanswered Queries
  • Queries (from 79035 to 79091)
  • Answers to Correspondents
  • Chess

N°1447 - 16 December 1892

  • ARTICLES
    • Elementary Practical Astronomy. - X.
    • The Elements of Geometry. - VII.
    • The Blount Door Spring and Check
    • Flotation of Comets’ Tails
    • « Hard Silver » Plating
    • The Modern Safety Bicycle, and its Practical Construction. - IV.
    • The Bradley Gas Generator
    • The Gathmann Torpedo
    • Improved Cut-outs for Electric Work
    • Spring Jack for a Side-Spring and a Crank-Axle
  • Scientific Societies : British Astronomical Association
  • Scientific News
  • LETTERS (from 34375 to 34396) :
    • Diameter of Holmes’s Comet - Astronomical
    • Occultation of Jupiter and the Nautical Almanac - A Plausible Trick, Hypnotism, &c. - Lunar Walled Plains - Electric Light for Telescope Tube - Meteor - Pronunciation of some Astronomical Names - Is Mars Inhabited ?
    • Altitude and Azimuth - Fruit-Drying - Oxygen for Lantern Lights
    • Mater - Death : what is it ? - Clairvoyance - Thaumaturgy - Materialism - Psychology.
    • Ink for Typewriter Ribbons - Gravitation - Health and Exercise - Terrestrial Magnetism
    • Ptomaines, and the Recrudescence of Cholera
  • Replies to Queries
  • Unanswered Queries
  • Queries (from 79092 to 79150)
  • Answers to Correspondents
  • Useful and Scientific Notes
  • Chess

N°1448 - 23 December 1892

  • ARTICLES :
    • Psychology. - VI.
    • Chemistry for Students. - XVIII.
    • Plating and Boiler-Making. - V.
    • Four inch Bench Lathes with Treadle and for Power
    • The Modern Safety Bicycle. and its Practical construction - V.
    • Combined Dividing-Road and Work-Table
    • Inflating Rubber Balls
    • The Columbian Piston-Rod Packing
    • Engraving on Glass by Electricity
  • Scientific Societies : Quekett Microscopical Club
  • Useful and Scientific Notes
  • Scientific News
  • LETTERS (from 34337 to 34427) :
    • Another Catalogue of Double Stars - Photographs of jupiter - The Leeds Astronomical Society - An indispensable Supplement to the Nautical Almanac - Pronunciation Of Astronomical Words and ,Names - Stellar Dies and Magnitudes - Eye pieces - Tripod Stand for a Telescope - A 21/2in. Achromatic Velocity (in arc) of the Planets - Latitude of Sunspots - A Cometary Collision a Tail of the World’s End - Encore the Pyramid - Elements of Occultations in the Nautical Almanac - Lunar Walled Plains Is Mars Inhabited 1 - Thaumaturgy - The Centrifugal Railway - Quarts Prime - Non-Achromatic Telescope - Sextant - An Addition to the Solar System
    • The Geminids - Jupiter - Saturn - Holme’s Comet (f. 1892)
    • Polaris - 14 Lyncis - Training - Comets and Comets’ Tails - The Andromeda Meteors - Some Cometary Phenomena - Pronunciation of Astronomical Names - Mesmerism, &c. - Thaumaturgy
    • Psychology - Matter - Death : what is it ? - Materialism
    • Evolution - Logarithms - Compound Locomotives - A Transformer for converting Declination and Right Ascension into Altitude and Azimuth - Position of Eyepiece - Gravitation Poisson’s Formula : a correction - Flax Cultivation - A Suggestion respecting the Radiation of Energy
    • Experiments in Electrostatics : XXV. - Heating Plant - Houses - Propagating Plants
    • The Position of We Polar Ray - Design in Nature
  • Replies to Queries
  • Unanswered Queries
  • Queries (from 73151 to 79193)
  • Chess
  • Answers to Correspondents

N°1449 - 30 December 1892

  • ARTICLES
    • Elementary Practical Astronomy. - XI.
    • Astronomical Notes for January, 1893
    • Lens-Work for Amateurs
    • The Smell of Cooking and its Prevention
    • The Optical Lantern : its Construction and Use. - X X.
    • Plating and Boiler-Making. - VI.
    • Notes on Rope-Driving. - I.
    • The Heliochromoscope
    • On the best Form of Mounting for a large Reflector
  • Scientific Societies : Royal Meteorological Society
  • Scientific News
  • Useful and Scientific Notes
  • LETTERS (from 34428 to 34442) :
    • The Maintenance of the Sun’s Heat - Some Cometary Phenomena - The Sun and the Lunar Planets - Star Discs - Position of Eyepiece, &c.
    • Pronunciation of Astronomical Names The Value of Testimony - Logarithms - Therapeutic Electricity - Experiments in Electrostatics : XXVI.
    • Flax Cultivation - Spelling and Pronunciation - Mesmerism Psychology
    • What I think of Technical Schools
    • Washing-Bottle for Micro-Sections
  • Replies to Queries
  • Unanswered Queries
  • Queries (from 79193 to 79217)
  • Chess
  • Answers to Correspondents

N°1451 - 13 January 1893

  • ARTICLES :
    • The Progress of Astronomy in 1892
    • Lens-work for Amateurs. - II.
    • Pipe Flues
    • The Elements of Geometry. - IX
    • Plating and Boiler-Making. - VII.
    • Notices of Books
    • Rod and Ring Experiment
    • The Analysing Eyepiece
    • Making a Wheel with Proper Dish
  • Scientific Societies : British Astronomical Association
  • Scientific News.
  • LETTERS (from 34466 to 34486) :
    • Is Jupiter’s Limb Opaque ? - Magnitudes of Faint Stars near Epsilon Lyræ - Determination of Limit of Vision - Eta and Gamma Corona - 14 Lyncis - Jupiter’s Fifth Satellite not discovered by Barnard
    • Jupiter - The Maintenance of the Sun’s Heat - Fine Meteor - The Quadrantid Meteors
    • Lunar Atmosphere - Some Ness Companions to Pairs in « Celestial Objects » - A Novel Motor - Psychology - Matter - Thaumaturgy - « Une idee que je ne puis pas verifier »
    • Aluminium - Silvering Specula - Position of Eyepiece - Large Electro - Magnet - Combustible Gases in Coal - Bunkers and Ships’ Holds.
    • Flax Cultivation - Propagating Plants - Eight-coupled Goods Engines
  • Useful and Scientific Notes
  • Replies to Queries
  • Unanswered Queries
  • Queries ( from 79266 to 79332)
  • Answers to Correspondents
  • Chess

N°1452 - 20 January 1893

  • ARTICLES :
    • Elementary Practical Astronomy - XII.
    • Psychology. - VIII.
    • Plating and Boiler-Making. - VIII.
    • Draught in Chimneys
    • The New Mesmerism
    • The Pruynway
    • Farrand’s Automatic Boiler Feed
    • Notes on Rope-Driving - II.
    • Variable Speed Power Transmission
  • Useful and Scientific Notes
  • Scientific News.
  • LETTERS (from 34487 to 34513) :
    • Absorption of Feat by the Sun’s Atmosphere - Polaris - Lunar Walled - Plains - Micro - Spectroscope - Planetary Motion - Finding R.A and Dec. for any specified Date - Comet Eyepiece - Sine of Angle - Height above Sea-Level - Nova Aurigæ - A Right Angle and a Wrong Angle : a Geometrical Puzzle - The Apparent Limb of the Moon, or of a Planet - The Midnight Sun - Converting R.A and Pee. into Longitude and Latitude - The Radii Vectores of a Comet - Observations of a Comet to determine its orbit - Longitude of Markings on Jupiter - The Ulster Astronomical Society
    • Saturn - Star Magnitudes, &c - Eta Coronæ - 14 Lyncis - Star near Jupiter - Star Mags - The Proper Motions of Sirian Stars
    • Southing of Stars - Jupiter - The Maintenance of the Sun’s Heat - Lunar Atmosphere - Holmes’s Comet - Roots and Asphalte - Bees - A Post - Office Question - Seeing : Real and Imaginary - A Twinkling Planet - A Hygrometric Difficulty - To « Sigma » , Psychologists, and Others .
    • Atoms and the Materialistic Theory - The Yoga Philosophy - « Une Idée que je ne puis pas verifier » : to C. Janczarski - A Novel Motor - Burst Water-Pipes - Aluminium - Fight - coupled Goods Engines - Fastest Run on North-Western - Notes on Theoretical Electricity
    • Experiments in Electrostatics : XXVII. - Flax Cultivation - A Lost Friend
  • Replies to Queries
  • Unanswered Queries
  • Queries (from 79333 to 79387)
  • Chess
  • Answers to Correspondents

N°1453 - 27 January 1893

  • ARTICLES
    • Electrical Apparatus, Constructing and Repairing. - II
    • Plating and Boiler-Making - IX
    • Astronomical Notes for February, 1893
    • The Ice Rink in Paris
    • The Elements of Geometry. X
    • The Modern Safety Bicycle, and its Practical Construction. - VII.
    • A Combined Finger and Ring Gauge
    • Practical Details of Die - Sinking. - III
    • A Cheap Microscope Lamp
    • Cutmore’s « Homacoustic » Speaking-Tube
  • Scientific Societies :
    • Royal Meteorological Society
    • Quekett Microscopical Club
  • Scientific News
  • LETTERS (from 34514 to 34539) :
    • Star Magnitudes :Beta and Gamma Coronæ - 14 Lyncis - Double Stars - Shadows of Saturn’s Satellites, &c - The Study of Nebulæ and Clusters and of the Milky Way - Polaris
    • Holmes’s Comet - Occultation of Jupiter - « Sigma » and Occultism - Copyright and Patent Laws - Driving Clock for Small Telescopes - The Maintenance of the Sun’s Heat
    • A Crux - A simple form of Star - Spectroscope - On Variable Star - Observing
    • Roller - Skate Wheels - A Novel Motor - Thaumaturgy - Aluminium - Burst Water - Pipes - Mr. Wynne Baxter’s Translation of Dr. H. Van Heurck’s« Le Microscope, »&c.
    • Eight-coupled Goods Engines - Geometrical Puzzle - An Old Dodge - Weeds - Flax Cultivation - Propagating Plants - Further Applications of coal - Gas for Heating
    • Roots and Asphalte - The Yoga and Theosophy - Materialism - The New Mesmerism
  • Replies to Queries
  • Unanswered Queries
  • Queries (from 79388 to 79456)
  • Answers to Correspondents
  • Chess

Vol LVII

N°1459 - 10 Mars 1893

  • ARTICLES :
    • Electrical Apparatus, Construction and Repairing. - I V
    • The Best Mode of Heating a Residence
    • Plating and Boiler-Making. - XIII
    • Lens-Work for Amateurs. - V
    • Bee-Hives, and How to Make them. - I
    • Elements of Geometry. - XIII
    • Chemistry for Students. - XXI
    • Field’s Improvements in Telephony
    • Notes on Rope-Driving. - III
    • Edison’s New Art of Generating Electricity
    • A New Theory of Colour - Perception
  • Scientific News
  • LETTERS (from 34651 to 34680) :
    • The StarBeta Cygni - Variable Star Observations, February 1893 - Double Stars - 15 Lyncis (BetaΣ 159) - To A P. Bower
    • The Star of Bethlehem - Pumping Water - Experiments in Electrostatics : XXIX
    • The concept of Mind
    • New Lancashire and Yorkshire, and South-Eastern Tank Engines - A New Geometrical Approximation - Dyeing Leather - Sensitive Photo. Plates - Sun-Engine
    • The Origin of the Cornet of Nov. 6, 1892 - Donble Stars - The Structure of the Galaxy
    • Cost of Continuous Brakes - The Latest Express Engine - Compound Locomotives
    • How to Make a Gas-Engine - Cuneiform Inscriptions - The Chaldean Account of the Deluge - Absolute Zero of Temperature - Theosophy - An Experiment with a Lucifer Match - Ether - How to become an Engineer - Sulphide of Calcium
  • Replies to Queries
  • Unanswered Queries
  • Queries (from 79769 to 79835)
  • Answers to Correspondents
  • Chess

N°1460 - 17 Mars 1893

  • ARTICLES :
    • A Double-Cylinder Pattern
    • Noises in Hot-Water Pipes
    • Bee-Hives, and How to Make them. - II
    • The Optical Lantern : its Construction and Use : XXIII
    • Stark’s Motor for Flying Machine
    • The Bachelder Steam-Engine Indicator
    • Micrometer for Cross-feed of Lathe
    • Carriage Woodwork : the Farm Waggon
  • Scientific Societies : Royal Astronomical Society
  • Scientific News
  • LETTERS (from 34681 to 34696) :
    • The Albert Hall v. the Imperial Institute - Astronomy for Everyday Readers - Schæberle’s Mechanical Theory of the Solar Corona - Meteorites and Vegetation in Space - The Visibility of Stars in the Daytime - Occultation of Jupiter by the Moon on Feb. 20 - Monster Telescopes - Height of Tower and Distance of Horizon - Dipleidoscope - Wind Pressure - Power for 81/2in. Reflector - Micrometer - The Spectrum of Nova Aurigæ - Jupiter, Saturn, &c. - Change of Latitude ; the Constant of Aberration ; and Parallax - The Actonian Prize ; and a Learned Society - Eyepieces - Absolute Zero of Temperature - Transit Instrument
    • The Star of Bethlehem - Double Star near Jupiter :Beta Boötis - The Visibility of Stars by Daylight - Companions toBeta Canis Minor (Procyon)Beta OrronisBetaΣ 175
    • Psychology
    • Chemistry for Students - Hereditary Mixtures - How to Make a Gas-Engine - The Van Heurck Microscope - The« Folkestone »Locomotive - Absolute Zero of Temperature - A possible Gigantic Telescope : II. - How to become an Engineer
  • Replies to Queries
  • Unanswered Queries
  • Queries (from 79836 to 79890)
  • Answers to Correspondents

Vol LVII

N°1473 - 16 June 1893

  • ARTICLES :
    • How to make a Printing Press - I
    • Plating and Boiler-Making. - XX
    • The Nansen North Pole Expedition
    • The Ayrton-Mather Electrostatic Voltmeter
    • Elements of Geometry. - XX
    • Handy and Inexpensive Appliances
    • The Oldest Book in the World
    • Simple Hygroscope
    • Metallic Drawing-Rolls
    • The Pentz-Reckenzaun Electric Meter
    • A Pneumatic Bubble Remover
  • Scientific News
  • LETTERS (from 35022 to 35047)
    • The Moon’s Physical Constitution - « Celestial Objects »- Tlid Nature of Physiography, and an Advanced Book thereon - A Critic Criticised
    • Mr. Espin and the Object-Glass Prism - Turret-Clock Making - Diffraction Spectroscope
    • Manual of. Astronomical Spectroscopy - Foundations of Engines and Machines
    • Mythical History - Space of n, Dimensions - To« F.R.AS »- Free Will and Necessity
    • Matter and Energy - W. F. Stanley’s Theory of Colour Vision - Evolution, Krishna and Christ - Origin of Life : II - Bursting Balloons - The Danger of Transparent Balloons
    • Collision Fender - The Von Pittler Lathe - A Model Locomotive - G.E.R. Tank Locos. - Ancient Longevity
    • Natural Food - Longevity - Sudden Blowing of Loco. Safety-Valves
  • Replies to Queries
  • Useful and Scientific Notes
  • Unanswered Queries
  • Queries (from 80480 to 80538)
  • Answers to Correspondents
  • Chess

N°1474 - 23 June 1893

  • ARTICLES :
    • Electrical Apparatus, Constructing and Repairing. - X
    • Lens-Work for Amateurs. - X
    • Leeson’s Patent Adjustable Screw-Tap Wrench
    • Plating and Boiler-Making. - XXI
    • A Revolution in Electric Heating
    • New Boring Bar
    • Allred’s Measuring and Drawing Tool
    • Weariness
    • Focussing Device for Telescopes
  • Scientific Societies : Quekett Microscopical Club
  • Scientific News
  • LETTERS (from 35045 to 35070) :
    • The Yerkes Mammoth Telescope - A Physical Observatory at Greenwich - The Mechanical Theory of the Solar Corona - Stellar Parallax - Epsilon Lyræ - The Nature of Physiography, and an Advanced Book thereon - Gravity - A Regrettable Retirement - Sunspots and the Weather - The Structure of the Milky Way - The Belgian Royal Observatory - Spectrum of the Nova Aurigæ - Diffraction Spectroscope - Mythical History - Space of n Dimensions - Mathematical Astronomy - Arithmetical Complement, &c. - Physical Strength
    • Saturn, Mercury, and Venus - Kellner Eyepieces .
    • Notes on Nebulæ - Turret-Clock Making - The Power of Plants to Draw Moisture from the Soil by means of their Roots - The New Steam Lifeboat
    • Free Will - Evolution - Tell-Amarna Tablets - Free Will and Necessity - Space of n Dimensions - The Fourth and Other Dimensions - Propelling Appliance for Swimming - An Old Locomotive
    • Silver Plate - White Lead - Edible Earth - Pyrogallol Stains - W. F. Stanley’s Theory of Colour-Vision
    • Joseph - Stone and Brick Memorials - The Gas-Engine and How to Make One : VI. - The Wimshurst Machine.
    • The Price of Potatoes
  • Replies to Queries
  • Unanswered Queries
  • Queries (from 80539 to 80600)
  • Chess
  • Answers to Correspondents
  • Useful and Scientific Notes

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