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Automobiles and People, Our Navy First Officially to Propose Reduction of Armaments and more

Food versus Feed

The Benefits to be Derived from Eating Skim Milk Instead of Giving it to the Barnyard Stock

By Arthur L. Dahl

Nature's Geometric Workmen

Microscopic Animals that Lay Down Stone Skeletons of Amazing Form

By William Butterfield

How to Get the Most Out of a Motor Truck

Practical Suggestions for the Truck Owner or Driver who is Interested in Efficient and Economical Operation

By Victor W. Page

The Incoming President of the A. A. A. S.

By Marcus Benjamin

The Tendency of Truck Design for 1920

Few Mechanical Changes Because of Satisfactory Operation of Existing Designs and Great Demand

Houses Built on Sand

How the New York Assay Office Foundations were Safely Laid without Endangering Adjoining Buildings

By J. F. Springer


  • Departments

    Correspondence - December 27, 1919

  • The Heavens in January, 1920

  • Inventions New and Interesting - December 27, 1919

  • Recently Patented Inventions - December 27, 1919

  • Index

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