GAS ENGINE CONSTRUCTION, OR HOW TO BUILD A HALF-HORSE-POWER GAS ENGINE. By PARSELL and WEED. A practical treatise of 300 pages describing the theory and principles of the action of Gas Engines of various types and the design and construction of a half-horse power Gas Engine, with illustrations of the work in actual progress, together with the dimensioned working drawings giving clearly the sizes of the various details; for the student, the scientific investigator and the amateur mechanic. This book treats of the subject more from the standpoint of practice than that of theory. The principles of operation of Gas Engines are clearly and simply described and then the actual construction of a half-horse power engine is taken up, step by step, showing in detail the making of the Gas Engine. 3d Edition. 300 pages. Price $2.50
THE GASOLINE ENGINE ON THE FARM: ITS OPERATION, REPAIR AND USES. By XENO W. PUTNAM. This is a practical treatise on the Gasoline and Kerosene engine intended for the man who wants to know just how to manage his engine and how to apply it to all kinds of farm work to the best advantage. The book includes selecting the most suitable engine for farm work, its most convenient and efficient installation, with chapters on troubles, their remedies and how to avoid them. The care and management of the farm tractor in plowing, harrowing, harvesting and road grading are fully covered; also plain directions are given for handling the tractor on the road. Special attention is given to relieving farm life of its drudgery by applying power to the disagreeable small tasks which must otherwise be done by hand. Many homemade contrivances for cutting wood, supplying kitchen, garden and barn with water, loading, hauling and unloading hay, delivering grain to the bins or the feed trough are included; also full directions for making the engine milk the cows, churn, wash, sweep the house and clean the windows, etc. Very fully illustrated with drawings of working parts and cuts showing Stationary, Portable and Tractor Engines doing all kinds of farm work. 300 pages. Nearly 150 engravings. 12mo. Price $1.50
CHEMISTRY OF GAS MANUFACTURE. By H. M. ROYLES. This book covers points likely to arise in the ordinary course of the duties of the engineer or manager of a gas works not large enough to necessitate the employment of a separate chemical staff. It treats of the testing of the raw materials employed in the manufacture of illuminating coal gas, and of the gas produced. The preparation of standard solutions is given as well as the chemical and physical examination of gas coal including among its contents-Preparations of Standard Solutions, Coal, Furnaces, Testing and Regulation. Products of Carbonization. Analysis of Crude Coal Gas. Analysis of Lime. Ammonia. Analysis of Oxide of Iron. Naphthalene. Analysis of Fire-Bricks and Fire-Clay. Weldom and Spent Oxide. Photometry and Gas Testing. Carburetted Water Gas. Metropolis Gas. Miscellaneous Extracts. Useful Tables. $4.50
GEARING AND CAMS
BEVEL GEAR TABLES. By D. AG. ENGSTROM. A book that will at once commend itself to mechanics and draftsmen. Does a way with all the trigonometry and fancy figuring on bevel gears and makes it easy for anyone to lay them out or make them just right. There are 36 full-page tables that show every necessary dimension for all sizes or combinations you're apt to need. No puzzling figuring or guessing. Gives placing distance, all the angles (including cutting angles), and the correct cutter to use. A copy of this prepares you for anything in the bevel gear line. $1.00
CHANGE GEAR DEVICES. By OSCAR E. PERRIGO. A practical book for every designer, draftsman, and mechanic interested in the invention and development of the devices for feed changes on the different machines requiring such mechanism. All the necessary information on this subject is taken up, analyzed, classified, sifted, and concentrated for the use of busy men who have not the time to go through the masses of irrelevant matter with which such a subject is usually encumbered and select such information as will be useful to them. It shows just what has been done, how it has been done, when it was done, and who did it. It saves time in hunting up patent records and re-inventing old ideas. 88 pages. $1.00
DRAFTING OF CAMS. By Louis ROUILLION.
The laying out of cams is a serious problem unless you know how to go at it right. This puts you on the right road for practically any kind of cam you are likely to run up against. 25 cents.
HYDRAULICS
HYDRAULIC ENGINEERING. By GARDNER D. HISCOX. A treatise on the properties, power, and resources of water for all purposes. Including the measurement of streams, the flow of water in pipes or conduits; the horse-power of falling water; turbine and impact water-wheels, wave motors, centrifugal, reciprocating, and airlist pumps.