Feature

Anemia Treated by Injection of Liver Extract into Vein

Huge Magnet to Be Used in Attack on Heart of Matter

Better British Planes May Result from Steam Cooling

Woman Archaeologist Finds First Mirrors of Eskimos

First Cosmic-Ray Telescope Built at Research Laboratory

Finer Structures Pictured by Use of Invisible Light

The Evolution of Smiles and Frowns

In Science Fields

Rocks Tell How They Were Formed: “A Classic of Science”

Fragments of Falling Stars Caught Drifting to Earth

Green-Red Beacon May Direct Air Port Traffic

Electric Devices Controlled over Wire Supplying Power