Feature

Work of Gibbs, Long Acclaimed in Europe

Search for Scientists

Ills Show in Fingerprints

Extreme Cold Key to What Makes Steel Really Hard

Mica Flakes Are Secret of “Sandwich” Paint

[Photograph]: Maps Needed

Warmer and Drier November for U. S.

Most Delicate Flint Work

Typewriter Makes Sheet Music Symbols

Skin Resistance Measures Deafness in Children

Books of the Week

New Machines and Gadgets