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When Cabbage Has the Yellows

By T. Swann Harding

How You Can Test Telepathy

By E. E. Free

The Limits of the Solar System

By Henry Norris Russell

When Mickey Mouse Speaks

By Andrew R. Boone

Bacteria for Amateurs

Practical Microbe Hunting for the Amateur Microscopist

By R. M. Watrous

An Entertainment Treasure House

By Albert A. Hopkins

The Truth About High-Altitude Flight

By W. H. Evers

Home-Brewing the Rainbow--and Understanding It

By Gaylord Johnson

The Submarine Turns Peaceful

Gas Aids the Potter

By J. B. Nealey

Servicing Washington's Autos


  • Departments

    Across the Editor's Desk, March 1933

  • Back of Frontispiece, March 1933

  • Temperament and Psychology at the Wheel, March 1933

  • Our Point of View, March 1933

  • From the Archeologist's Note Book, March 1933

  • An Electric Taster, French Cruiser "Dunkerque" and more

  • Radio Anti-Trust Case Settled

  • Books Selected by the Editors, March 1933

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