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Our Superb Battle Cruisers, Why Health Authorities are Baffled, and more

Efficiency of Farm Tractors

A Standard System of Testing Needed

By C. M. Eason

The Dean of Bacteriologists

A Brief Survey of the Contributions of Elie Metchnikoff to Human Welfare

Strategic Moves of the War, July 20th, 1916

By Our Military Expert

Modern Agricultural Tractor Designs

By Victor W. Page

Sharks, Man-Eating and Otherwise

The Present Status of a Very Old Subject of Controversy


  • Departments

    The Heavens in August

  • Inventions New and Interesting- July 29, 1916

  • Note and Queries- July 29, 1916

  • Recently Patented Inventions- July 29, 1916

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