Feature

[Photograph]: Waterproof Jeep

Rubber Articles Are Plastic-Bonded for Leakage

[Photograph]: Pull-Ups in a Cast

Books of the Week

Front Matter

Nature Ramblings: Before Santa Claus

Leprosy Expected

Heavy Artillery Aided by New Electronic Equipment

New Machines and Gadgets

Synthetic Sky Speeds Training of Navigators

In Science Fields

Climate a la Carte