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The Aurora--Elusive Mystery of Science

By N. H. Heck

Measuring the Rotation of the Stars

By Henry Norris Russell

A Floating Electric Power Plant

By A. T. Littlefield

Sculpture and Taxidermy Join Forces

The Future of the Rocket

By David Lasser

Scientific Progress in 1930

The Mecca of Ancient America

By A. Hyatt Verrill

Migrating Fish 'Climb' Fish Ladders

By Charles W. Geiger

Flying to Find Oil

By Milton Wright

Safeguarding Society

By Albert A. Hopkins

From the Archeologist's Note Book

"Largest Meteorite Seen to Fall"

By Charles Clayton Wylie

The Mammoth Saluda Dam

A New Advance in Food Production

By Rensselaer Sill

Companions in Depression

By Raymond B. Fosdick

Two Cars in One Elevator Shaft

By H. D. James


  • Departments

    Across the Editor's Desk, March 1931

  • Einstein Goes Sailing

  • Extinct Because of Too Much Evolution

  • Our Point of View, March 1931

  • Easy Way to Melt Snow Blanket in Spring, Tracer Shotgun Sheil and more

  • Scarlet Fever Toxin Patent Sustained, Patent Specification Ordered Revised and more

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