Feature

Books of the Week

New Machines and Gadgets

Front Matter

Health for Mentally Ill

Hereditary Cell Changes

Royalty Lowers Its IQ by Family Inter-Marriages

Spring Muskrat Trapping Called Menace to Ducks

New Device Says “When” in Making Mixed Drinks

Test Blood Stickiness

Packaging Atomic Wastes

Chemical Methods Can Preserve Works of Art

[Photograph]: Brother Rat Lacks Vitamin