Feature

Gap in Einstein Theory Filled by New View of Physics

Incurable Tropical Disease Yielding to Science

Two-Sexed Corn Strain Obtained by Breeding

Fluorine in Water Causes Spotted Teeth

The First of the Rare Earths: “A Classic of Science”

Strict Time Not Followed by Skilled Pianists

Earth’s Magnets Quiver Day after Outburst on Sun

Front Matter

Five Hundredth of an Atom’s Diameter Measured Exactly

Hair and Eye Color Are Index to One’s Emotional Behavior

Parenthood Seems to Depend on Inorganic Manganese

Bacteria-Eating Protozoa Thrive Best on Mixed Diet