SA Supplements

The Photographic Gun

Heat of Electrical Sparks

A Gelatine Emulsion for Direct Printing

Mounting and Binding Transparencies, Lantern Slides, Etc.

Gelatino-Chloride of Silver Pictures by Development

Instrument for Coating Photo Plates

Transfer Printing Processes

The New Welland Canal

James Gordon Bennett's New Yacht

The Highest Building in Europe

Gardeners' Cottages

Failure of a Gasholder

A New Spinning Machine for Wool

The Theory of the Gas-Engine

A Mexican Cart

A New Manganese Mineral

The Discovery of Emeralds in North Carolina

How to Measure the Sunshine

The Effects of Heat and Cold on Ice

A New Electric Gas Lighter

Experiments in underground Telephony

Electric Resistance of Selenium

The Secondary Battery

On the Precipitation of Tannic Acid as Tannate of Copper

Edison's Electric Railway

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

To Dissolve Silver from Silvered Articles

Artificial Indigo

On the Separation of Alumina and Iron from Manganese with Ammonia

Bismuth Oxide as an Agent for Opening up Silicates

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

How “Wintergreen Oil” is Made

Apparatus for Verifying the Illuminating Power and Density of Illuminating Gas

Silico-Molybdic Acid

The Siemens Regenerative Gas-Burner

On the Transformation of Ozone into Oxygen by Heat

Reverted Phosphates

The Irritating Effects of Cardol

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

A Geological Broker

Hypothetical High Tides, as Agents of Geological Change

Galeandra Nivalis

On the Composition of American Grasses

The Poplar

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

The Pipes of all Peoples

Superstition as an Aid to Thieves

Jersey Cow Lady Mary

Breweries in Europe and the United States

Sardine Fishery

Patents