Scientific American Magazine

Organization and Operation of Mechanized Forces of Our Army

United States Deficient in Combat Vehicles; New Type, Heavily Armed and Armored, Suggested

Commonplace Fabrics with Superior Chaacteristics Given by Special Treatments

Plant Will Extract Light-Weight Industrial Metal, Magnesium, From Solution

Lawrence Had an Inspiration, So Science Now Has the Cyclotron for Smashing Atoms

For Readers Who Wish to Look Further into its Technical Details

So Often Seen in Print—So Seldom Interpreted; Theoretical Discovery Now Has Practical Value

Taking the Moon's Temperature During an Eclipse Reveals a Phenomenally Big Drop

Evidences Unearthed in Ohio Afford Clear Proof of a Grisly Mound-Builder Rite

No Longer are They A Complete Mystery

Intelligence, Adaptability, Physique, Mental and Physical Health Are Factors

How We Can Build Planes at a Rate of 20,000 a Year; Two Types Permit Economical Aerial Gunnery Practice; Pick Up Aircraft After Crashes or Forced Landings

Most Dentifrices Are Good but Many of the Claims Made Are Not Justified

Desirable Features of System Far Outweigh Erroneously Imagined Criminal Aspects