Feature

[Photograph]: Insatiable Curiosity

Front Matter

Cancer Kills More Quickly as Blood Alkalinity Rises

Man Must Use Brains to Sleep Normally

California Astronomer Chosen National Academy President

Birds Excel Man’s Airplanes as Efficient Flying Machines

Parenthood Seems to Depend on Inorganic Manganese

New Self Respect Sought for Dementia Praecox Patients

Pressure of Sunlight Strong Enough to Break Comet in Two

Tropical Disease of Cattle Gains Foothold in U. S.

Five Hundredth of an Atom’s Diameter Measured Exactly

Lifeless Drops Can Act as If They Had Life in Them