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Mrs. Sinclair's 'Mental Radio'

By Walter Franklin Prince

George Washigton, Inventor

By James Hay

A Miniature Solar System and its Problems

By Henry Norris Russell

Gem-Stone Cutting for the Amateur

By J. H. Howard

To Salvage a Sunken Liner's Treasure

A New Turbine Rocket Plane for the Upper Atmosphere

By R. H. Goddard

Why Power Companies Plant Trees

By John Winters Fleming

A Horizontal Well

Supplies Fresh Water to Bermuda

George Washington

The Father of the American Navy and Exponent of Sea Power

By W. D. Puleston

From Angora Goat to Mohair Fabric

The Telephone Spans the Pacific

By R. C. Smith

From the Archeologist's Note Book

Preservation of Leather Book Bindings

By F. P. Veitch and R. W. Frey


  • Departments

    Across the Editor's Desk, March 1932

  • Back of Frontispiece, March 1932

  • The "Underwater Foreman" Dives to his Work

  • Our Point of View, March 1932

  • Recorded Music and Sound Effects in "Hamlet", Tomato Test for Poison Gases and more

  • More About a Single Court of Patent Appeals, Advertising Agency Abandons "Home Work" Sewing Ads and more

  • Books Selected by the Editors, March 1932

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