Feature

Nature Ramblings: Pigs as Guinea Pigs

New Swiss Burglar Alarm Operates like Seismograph

Oxygen and Nitrogen Have Taste at High Pressures

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