Feature

First Glances at New Books

Front Matter

Principal Hay Fever Season Marches up Map on Schedule

Infra-Red Photoflash Bulb Takes Pictures in Darkness

Record-Breaking Case of Weight Reduction Reported

[Photographs]: Cloud Shorthand

New Weather Map Symbols Recall Indian Picture Writing

Change from Wave Lengths to Frequencies Proposed

Vitamin $text{B}_{1}$ Found Concentrated in Buds of Many Common Trees

Distant Nebula Discovered; Looks like Faint Star

Japanese Fishing Net Ashore at Wake Island

X-Ray Tests of Fibers Show Key to Strength