Feature

New Way to Separate Isotopes Is Quick and Effective

Earthquake Records Show Mountains Have a “Keel”

Nature Ramblings: Living Lanterns

Migrating Butterflies Marked for Identification

New Chemical Advances Include Fabrics from Fish

First Glances at New Books

N and Z Turned Backward Clue to Swastika “Magic”

Sulfanilamide May Be Dangerous in Syphilis

Return of 1788 Comet Is Believed Discovered

Poultry Raising Big Business; Norway Hens Are Fed Milk

Million Dollars a Year Asked for New Mail Route

First Glances at New Books