New Trade Literature Received The following literature descriptive of up-to-date methods and equipment for fire departments, has just been issued for general distribution, and can be procured by writing to the concerns mentioned. Those desiring additional trade literature in which they are interested can use our regular “Information for Buyers” pages, listed in the Advertising Index. Beckman-Dawson Roofing Co., New York, N. Y.—Eightpage illustrated booklet on Ced-A-Roc shingles. Federal Electric Co., Chicago, Ill.—Booklet describing the Federal-Tyfon fire alarm system—eight pages, illustrated. Garrison Fire Detecting Systems, New York, N. Y.—Technical Handbook No. 1 on the installation, inspection and maintenance of such systems.