SA Supplements Vol 18 Issue 450supp

SA Supplements

Volume 18, Issue 450supp

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Features

History of the Electric Telegraph

The Calumet and Hecla Mines and Plant

The Captive Balloon at the Turin Exhibition

Lifting Bridge for Double Track Railway

The Heavy Guns of 1884

E. Mactland

Sheraton Drawing Room Furniture

Retouching Gelatine Negatives

Liquefaction of Gases

Freezing of Ether and Alcohol

Bleaching Agents- of the Future

E. Dwight Kendall

Pyroxylin-Gun Cotton

Gustavus Pile

Photographing a Pistol Ball and Sound Waves

The Extinct Lakes of the Great Basin

How the Earth is Weighed

A Dog Plans and Executes with Reference to the Future

Military Tournament at the Agricultural Hall

Prize Dogs of the Vienna Dog Show

The Guise Co-Operative Experiment

The Economic Uses of the Mezquit

Departments

Patents - August 16, 1884