Feature

Use of Construction Steel Likely to Increase

Anti-Tuberculosis Vaccine Gives Encouraging Results

Nature Ramblings: Insect Specialists

First Glances at New Books

Front Matter

Elusive Element No. 87 Reported Discovered

[Photograph]: Atom Smasher

First Estimate of Size of New Subatomic Particle

Iron and Sugar Checks Cancer Growth in Rats

[Photographs]: Speedy Telephoto Camera

Committee of Physicians Urges Adequate Medical Care

Pneumonia Serum Should Be Available to the Public