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Features

Evolution and Geographical Distribution, The Toll of Aviation, and more

Hugo de Vries

Famous for his Mutation Theory of Descent

By D. T. MacDougal

New Atlantic-Type Locomotives for the Anglo-Scottish Expresses

Increasing Use Abroad of Large Boilers and Heavier Loads on Drivers

By Frederick C. Coleman

Abstracts from Current Periodicals- November 11, 1911

Phases of Science as Other Editors See Them

Results of the Glidden Tour

Lessons to be Learned from the Annual Automobile Endurance Contest

New Development in Aeroplane Construction

Three European Types Embodying Unusual Features

By Grover Cleveland Loening

Preparations for Launching the “Akron” for its Trial Trip

Preliminaries for a More Complete Test

A Landsman's Log Aboard the Battleship “North Dakota”—III.

By J. Bernard Walker

The Battleship "Orion"

The First British Super-Dreadnought

By Percival A. Hislam

Simple Tests for Food Purity

What the Housewife May Do to Detect Adulterations

By S. Leonard Bastin

A Needle Drill

By Philip Edelman

Screw-Driver Wrench and Tap Wrench

By G. H. Ander

Ball-turning Device

By H. D. Chapman

Suggestions for the Workshop- November 11, 1911

Ingenious Expedients of Resourceful Mechanics

The Inventor's Department- November 11, 1911

Simple Patent Law; Patent Office News; Inventions New and Interesting

Departments

  • Letters

    Correspondence- November 11, 1911

  • Departments

    Recently Patented Inventions- November 11, 1911

  • Notes and Queries- November 11, 1911

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