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Highway Engineering Education

Modern Facilities Offered for Special Study

By Arthur H. Blanchard

Tar Oil for Diesel Engines

Novelties at the Paris Aviation Show—III

A Fine Exhibition Representative of the Present Development of the Art

An Investigation on the Manufacture of Tea

A Contribution from Japan to the Eighth International Congress of Applied Chemistry

By S. Sawamura

A Whaling Expedition in Korea

The California Gray Whale, Supposed by Many to be Extinct, Rediscovered in Korean Waters

By Roy C. Andrews

Locomotives as Fire Engines

Over Six Hundred in Service on the Lines of One Company

Determining the Mean Length of Life

A Method Applicable to Living Population and to Commodities Having a Limited Period of Usefulness

By W. J. Spillman

The Life of Machinery

Its Economic Limits

Why Joy Conquers Wounds and Germs

The Form of the Earth

What Gave the Oceans and Continents Their Form and Distribution?

By William Thayer Jordan

The Peat Bogs in Michigan

Their Agricultural Value

By A. J. Patten

Producing Gasoline from Natural Gas

By Frank P. Peterson


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