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Conditions of the Battleships after the Long Cruise

The Turbine the Complement of the Compound Engine

Ornamentation in Lake-Dwellers' Habitations

Futile Criticisms of the Lock Canal

Aeronautics

Engineering

Electricity

Kaemper's Discoveries in the Mammoth Cave

By Horace C. Hovey

A Wonderful Model of the Strasburg Clock

Feeding the American Army

By B. R. Winslow

A Rack and Pinion Problem

The “North Dakota's” Turbines

Sulphate of Copper as a Fungicide

Col. J. J. Astor's Vibratory Disintegrator

An Ingenious Device Which Manufactures Prouducer Gas From Peat and the Patent Covering Which will be Given to the Public

The Sigafoos Tunnel Machine

By Rowland Ashford Phillips

Injury to the Turbines of the Scout "Salem"

Latrodectus--The Poisonous Spider

By Alexander Petrunkevitch

The Flying Gurnards

By Charles F. Holder

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    Index of Inventions - May 22, 1909

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May 22, 1909

See the World from a Different Perspective

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