SA Supplements

March 1893

Volume 35, Issue 899supp

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Features

The Bell Telephone Patents

Colored Fires

E. J. Kennedy

The House of Commons New Signal Light

Where the Columbia River Gold Comes From

Formulas for Colored Fires

Japanese Instruments for the Earthquake Laboratory at the Chicago Exposition

Artificial Imitation of the Gemination of the Canals of Mars

The Simplex and Huge Torpedoes

H.C. VoGt

The New Steamers of the Cunard Line

Recent High Speed Locomotives

A Mechanical Horse

The Manufacture of Liquors and Preserves

J. De Brevans

The Car and Cab Drivers' Heater

British Industries Under Mckinleyism

Astronomical Photography on Shipboard

The Tour of Switzerland

The Electric Curtain of the Comedie Francaise

On the Magnetic Properties of Oxygen at Various Temperatures

P. Curie

New Style of Electric Car

The Duality of the Mind

Benjamin Ward Richardson

Mr. Pasteur's Birthday Anniversary

Mammals Collected by Mr. Dybowski in the Interior of Africa

The Chemical Technology of Drying Oils, Oil Boiling, and Bleaching

W. N. Hartley

Improvements in the Manufacture of Nitric Acid

Oscar Guttmann

Separation of Microorganisms Centrifugal Action

M. R. Leze

Change in the Character of a Mineral Water

W. P. Mason