Feature

Maya Indians Have Better Teeth than College Girls

Plenty of Water Found Better than Little for Nephritis

Fundamental Fact Discovered in Study of Root Disease

[Photograph]: One Part in a Trillion

[Illustration]: The Great Warrior

Latest-Found Elements Named after Virginia and Alabama

Front Matter

George Washington, Experimental Farmer: “A Classic of Science”

Exact Reproduction Not Goal of Ancient Greek Sculptors

Sunspots and Tree Rings Prove Aid to Engineer

Photographs Record High Speeds of Atomic Hearts

First Glances at New Books