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The Chances of Death and the Ministry of Health

Some Lessons Taught by Vital Statistics

By Frederick L. Hoffman

The Preservation of Wood—I

A Synopsis of the Principal Processes in Use To-day

By A. J. Wallis-Tayler

The Electrical Conductivity of Copper


A Long Rope Railway

A New Wright Aeroboat

A Marine Aeroplane of the Pontoon Type

An Early Slide Rule

A World's Fair of Books

The International Exposition of Book Trade and the Graphic Arts at Leipzig, Germany

By Alfred Gradenwitz

Light Alloys for Automobile Parts

Some Characteristics of Antivivisection Literature

Who are the Authors Quoted as Authorities by Antivivisectionists ?

By Walter B. Cannon

Controlling Ships' Engines Directly from the Bridge

Mechanism Which Places the Control into the Captain's Hand

The Limit of Fatigue

Transatlantic Flight

A Discussion of Possible Routes

By Lieut. H. Boykow

Musical Sensation

Problems of Stability in Aeroplanes


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