Lives of many soldiers wounded in action will be saved with the help of a traveling X-ray laboratory that can make radiographic records of hundreds of patients a day near the battle front: where hospital facilities are out of reach. Contained in a twenty-two-foot trailer, the compact, X-ray equipment, built by Westinghouse X-Ray company, is equal in efficiency to that of many American hospitals. If no outside electric power is available, a miniature built-in power station uses the truck’s engine to build up X-ray charges as high as 90,000 volts. A newly developed condenser-discharge machine stores up the voltage, fed in small quantities from an electric generator, and when the necessaryamount of current has been “saved up " the charge is released automatically in a single bolt of high voltage to the X-ray tube. The trailer is divided into a lead-lined X-ray chamber and a darkroom for developing and studying radiographic pictures.