Feature

Formula for Racing Shown at Carnegie’s Exhibit

Erratum: Science Today and Tomorrow: Morgan on Filterable Viruses

Find Drug That Will Keep Sleepy Persons Wide Awake

New Radio Device Detects Leaks in Water Mains

In Science Fields

Erratum: No South Polar Star in Cold Antarctic Heavens

Mural Portrays Error in Machine Shop Practice

Movies Show Plants Dancing, Getting Dazed on Monoxide

Costly Grinding of Telescope Disk Replaced by New Method

Front Matter

Poison May Be Factor in Causing Pernicious Anemia

Volume Information