Feature

Amateur Discovers Two New Comets

New Machines and Gadgets

Books of the Week

Galaxy Appearing to Be Formed Is Discovered

[Photograph]: Medical Center

Undersea Vessel Designed

Chromosome Linkage in Domestic Chickens

Mice Relay Heartbeats

Human-like Computer Reads and Writes

Oceanographers Need Ships

Animal Study Adds to Man’s Self-Knowledge

Radioactivity Found High off Antarctic Continent