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Features

The Photographic Gun

A Gelatine Emulsion for Direct Printing

Mounting and Binding Transparencies, Lantern Slides, Etc.

By John Harmer

Heat of Electrical Sparks

Transfer Printing Processes

Instrument for Coating Photo Plates

Gelatino-Chloride of Silver Pictures by Development

By B. J. Edwards

The Highest Building in Europe

James Gordon Bennett's New Yacht

Gardeners' Cottages

The New Welland Canal

The Theory of the Gas-Engine

Failure of a Gasholder

A New Spinning Machine for Wool

The Discovery of Emeralds in North Carolina

By Wm. Earl Hidden

A New Manganese Mineral

By Malvern W. Iles

A Mexican Cart

On the Precipitation of Tannic Acid as Tannate of Copper

How to Measure the Sunshine

Experiments in underground Telephony

Electric Resistance of Selenium

Edison's Electric Railway

A New Electric Gas Lighter

The Secondary Battery

The Effects of Heat and Cold on Ice

On the Separation of Alumina and Iron from Manganese with Ammonia

By Nelson H. Darton

Fixation of Alumina as a Discharge on Indigo-Blue by Means of Aluminum Chloride

By G. Saget

Artificial Indigo

To Dissolve Silver from Silvered Articles

Bismuth Oxide as an Agent for Opening up Silicates

By Walther Hempel

Note on the Volumetric Estimation of Zinc, by Titration with Potassium Ferro-Cyanide

By Robert W. Mahon

How “Wintergreen Oil” is Made

By George W. Kennedy

Apparatus for Verifying the Illuminating Power and Density of Illuminating Gas

On the Transformation of Ozone into Oxygen by Heat

By Ira Remsen

The Siemens Regenerative Gas-Burner

Silico-Molybdic Acid

Reverted Phosphates

Carbolic Acid for Boils, Ulcers, Poisonous Bites, Hemorrhoids, Carbuncles, and Tumors

By N. B. Kennedy

The Irritating Effects of Cardol

By Ida R. Brigham

A Geological Broker

The Poplar

On the Composition of American Grasses

By Clifford Richardson

Galeandra Nivalis

The Pipes of all Peoples

Dr. Macgowan on the Utilization of Ants as Grub Destroyers in China

Sardine Fishery

Superstition as an Aid to Thieves

Breweries in Europe and the United States

Jersey Cow Lady Mary

Departments

  • Hypothetical High Tides, as Agents of Geological Change

  • Departments

    Patents

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June 10, 1882

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