Feature

[Photograph]: Largest Spot Welder

Phosphor in Lead Makes Infra-Red Rays Visible

First Flight of XB-36 Judged Excellent

Science Failed Hitler

Food Plans for World

Jute Made into Wool Substitute in India

In Science Fields

Third of Women to Work

West Indies Quake=8:25

System Similar to Radar Not New to Bats

Exploring Upper Air

Front Matter