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Muscle Shoals Active at Last

Tennessee Valley Authority Act Provides for Operation of Muscle Shoals and the Development of a Wide Area

By William Benjamin west

Is Telepathy Indicated

As Being a Factor in the Events Described Below? Experiences of Readers That Thus Far Have Not Been Explained

How Rare Gases Give Beauty to Lighting

"Neon" Tubes Do Not Always Contain Neon: Argon, Krypton, Xenon, Helium, and Mercury are Also Used

By A. P. peck

The Greatest Catastrophe of All

By Henry Norris Russell

The Carolina Bays—are they Meteor Craters?—II, October 1933

The Amateur and his Microscope—IV Use and Care of the Instrument

(Continued from September)

By John F. Brandt and Frank Challis

The Inheritance of Disease

To What Extent and in What Circumstances are Cancer, Tuberculosis, Goiter, and Syphilis Inheritable?

By Charles B. Devenport

From the Archeologist's Note Book, October 1933

The Progress of Aviation

A Recent Crop of Reflecting Telescopes, Made by Readers of this Scientific American and the Book Amateur Telescope Making

The Pennsylvania Electrifies

By J. V. B. Duer


  • Departments

    Across the Editor's Desk, October 1933

  • The Servant that has Transformed the World

  • Our Point of View, October 1933

  • Photography With Semi-Invisible Flashes, Submerged Shotgun Bursts and more

  • Current Bulletin Briefs, October 1933

  • Books Selected by the Editors, October 1933

  • Oil Burner Trademarks Rejection of Chemical Claims

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