Feature

Predicting Undiscovered Elements: Part Two: “A Classic of Science”

Cancer Only One of Nobel Prizeman’s Research Lines

Physiologist Appraises Dr. Warburg’s Work

Millions Wasted Yearly for School Ventilation

Plant Patents Necessitate Use of Color Printing

Nature Ramblings: Crickets

Farm Student Appears More Radical than City Cousin

First Glances at New Books

Front Matter

Huge Burning Glass May Give Maximum Sun Heat on Earth

Prehistoric Cave Culture Proves Mystery to Scientists

Sulphur to Be Taken from Crater of Mexican Volcano