Feature

Automatic Seismograph Works Only When Quake Starts It

Personality from Ink Blots

The Steam Turbine: “A Classic Invention”

Tonsils, Once Held Useless, May Prevent Diphtheria

Bumper Crop of Bear Cubs Reported in Yosemite Park

Used Oil Proves Superior in Auto Operation Tests

In Science Fields

Telescope with New Features Will Take Best Star Pictures

[Photograph]: Collectors of Atmospheric Electricity

Front Matter

[Photograph]: Mirror of the Future

First Glances at New Books