Feature

Bombing Lava Stream Deflects Flow in Harmless Direction

[Photograph]: Pioneer

Pellagra, Disease of South, Found in the North

Fossil Skull in Museum Is of “Awful Alligator”

Front Matter

Marihuana Found Useful in Certain Mental Ills

First Glances at New Books

Stars of the Summer Sky

International Cooperation in Reporting Returning Comet

New Machines and Gadgets

Science Clubs of America

Live Mouse Found on Airliner from Puerto Rico