Scientific American Magazine Vol 149 Issue 1

Scientific American Magazine

Volume 149, Issue 1

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Features

The Secret Message of the Cosmic Ray

Arthur H. Compton

The Art of a Hard, Cruel People

Might and Power, Typified by Lions and Bulls, Guarded the Gates in Mesopotamia

The Results of Our First Test of Telepathy

The Charts Received Have Been Collated and Analyzed Mathematically. Results Appear to Point to the Operation of Something Other Than Chance. The Findings of Experts After Studying the Data

The Misnamed "Planetary" Nebulae- What are they?

Henry Norris Russell

Keep Marshlands for Wild Fowl

Much Reclaimed Marshland, Unfit for Agriculture, Should be Rewatered for the Benefit of Water Fowl

Paul G. Redington

A Chinese River in Bavaria

The Amateur and his Microscope--I

Ernest H. Anthes

Transoceanic Airship Service

Wolfgang Lambrecht

Snapshots of Bullets in Flight

C. T. Ervin

The Minerals in Milk

James A. Tobey

Chemical Engineering and Insurance

R. C. Stratton, J. B. Ficklen

Departments

Across the Editor's Desk, July 1933

Back of Frontispiece, July 1933

And Never the Twain Shall Meet'

Our Point of View, July 1933

Lead Pencil Ends Scientific Search, Tiny Mosquito Fish Win and more

Books Selected by the Editors, July 1933

Noted Inventor Dies, Foreign Dressmakers to Stop Copying and more