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French Hot-Air Stoves and Air and Hot-Water Chimneys

Steam Boiler Furnaces for Smoke Prevention

By John W. Hill

Exhibition of Applied Science, Paris

The Sewerage Works for the Croydon Rural Sanitary Authority

Ring Spinning

An Electric Gaslighter

The Lontin System of Electric Lighting

The Writing Telegraph


The Woodbury Processes

Intensifying Gelatine Negatives

Painting on Wood

Cement for Glass, Earthen, and Wedgwood Ware

The Barff Process for Preserving Iron

Morris Ketchum

Dephosphorization of Iron

Alloys of Gallium with Aluminum

Volatility of Platinum in Chlorine

Bichloride of Mercury

Climate Cure in Nervous Diseases

By William F. Hutchinson

Coating Iron with Copper

The Action of Salicin and Salicylic Acid in Acute Rheumatism

By William Squire


Government Action Required


Zander's Mechanical Gymnastics

Royal Astronomical Society

Slate Fossils

The Antiquity of Glass

The City of Paris


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    January 31, 1880

    20% Sitewide for President's Day