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Features

Timber Dry Docks

Modern Railroad Facilities

By Wm. Barxet Le Van

Surface and Elevated Cable Railroads for Our Eastern Cities

Military Ballooning

Improved Anchor Gear

The Corvette Alexandrine, of the German Navy

Heating Buildings by Steam from a Central Source

By J. H. Bartlett

Concrete as a Building Material

By Thomas Potter

Illumination of Fountains by the Electric Light

The Thermomicrophone

Sixteenth Century Helmets and Armor

The Production of Ammonia from the Nitrogen of Minerals

By George Beilby

Reply to an Editorial Article in the “Scientific American, ”Entitled “Patent Office Examinations of Novelty of Inventions”

Salicylic Paper

Notes on Some Japanese Oils

By E. M. Holmes

The Action of Light on Silver Chloride

By Spencer B. Newbury

Winter Scenes on the Brocken

Bird Charmers

Mexican Archæology

The Earthquakes in Andalusia

The Phœnix Cock of Japan

Departments

  • Departments

    Patents - May 2, 1885

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Why Do Facts Fail?

Why Do Facts Fail?

Deconstructing Denial