Feature

[Photograph]: Jet Interceptor

Anti-Leukemia Drug Found Effective in Lab

Lark-Horovitz, Physicist, Dies after Long Illness

Pigeons’ Breathing Rate Increases in Daylight

Books of the Week

Aged Lack Vitamin B

Brain Research Needed

Make Body Hormone

Front Matter

Artificial Heart Used

New Machines and Gadgets

Russians Look at Future