HERE’S just the book on Electricity that you need to answer your many questions— to solve your knotty problems, to teach you new kinks, to be your memory for tables, rules, formulas and other Electrical and Mechanical facts that some people try to carry in their heads—and fail. With this “Little Giant” I. C.S. Electrical Engineer’s Handbook in your pocket, tool chest, on your work bench, drawing table or desk, an hour or a day need not be lost “digging up” some forgotten rule, some unfamiliar fact; you’ll just turn to the very complete index and get jiffy.” Just a few of the subjects treated are :
Electricity and Magnetism; Electrical Symbols; Batteries; Circuits; Magnets; Direct and Alternating Currents; Dynamos and Motors; Belts; Shafting; Electroplating; Electrical Measurements; Meters; Arc and Incandescent Lamps; Mercury Arc Rectifiers; Transformers; Insulation; Electric Cars; Single and MultipleUnit Control; Transmission; Rail Welding; Tables of Wires—Sizes, Capacities, etc.,—Mathematical Rules,' Formulas, Symbols; Tables of Constants, Equivalents, Roots, Powers, Reciprocals, Areas, Weights and Measures; Chemistry; Properties of Metals; Principles of Mechanics; First Aid, etc. The Electrical Engineer’s Handbook is one of 22 I. C. S. Handbooks covering 22 Technical, Scientific and Commercial subjects, all crowded with value. They have the contents of a full-size book condensed into pocket-size ready to go with you anywhere and be at your instant command. They are substantially bound in cloth, red edges, goldleaf stamping, printed from new, clear, readable type on good quality book paper. There is an illustration at every point where a picture will help. Hundreds of thousands have been sold on a money-back guarantee of satisfaction. The formerprice of these Handbooks was $1.25, but THIS MONTH you can buy C A each, the ones you want for only ü UC postpaid (For 10c extra wo will send a cloth-covered protecting cate.) You Run No Risk ! Money Back if Desired t International Correspondence Schools Box 5803f Scranton, Pa.
INTERNATIONAL CORRESPONDENCE SCHOOLS
Box 5803, SCRANTON, PA. I enclose $_ for which send me postpaid the Handbooks marked X, at 50c. each. I may return any or all and get my money back within ten days from receipt : □ Electrical Engineer’s Advertiser’s * □ Teleph.and Teleg. Engineer’s Business Man’s X IM Mechanic’s Bookkeeper’s M Steam Engineer’s Steno, and Correspondent's □ Westinghouse Air Brake Salesman's □ Civil Engineer's Window Trimmer’s Q Coal Miner’s Cotton Textile Worker’s □ Concrete Engineer’s Farmer’s O Building Trades Poultryman's □ Plumber’s and Fitter’s Mariner’s □ Chemist’s Automobile Name_ Street and No. City. State.