WIRING A HOUSE. BY HERBERT PRATT. Shows a house already built; tells just how to start about wiring it; where to begin; FACTORY MANAGEMENT, ETC. MODERN MACHINE SHOP CONSTRUCTION, EQUIPMENT AND MANAGEMENT. By O. E. PERRIGO, M.E. The only work published that describes the modern machine shop or manufacturing plant from the time the grass is growing on the site intended for it until the finished product is shipped. By a careful study of its thirty-two chapters the practical man may economically build, efficiently equip, and successfully manage the modern machine shop or manufacturing establishment. Just the book needed by those contemplating the erection of modern shop buildings, the rebuilding and reorganization of old ones, or the introduction of modern shop methods, time and cost systems. It is a book written and illustrated by a practical shop man for practical shop men who are too busy to read theories and want facts. It is the most complete all around book of its kind ever published. It is a practical book for practical men, from the apprentice in the shop to the president in the office. It minutely describes and illustrates the most simple and yet the most efficient time and cost system yet devised. Price $5.00 FUEL COMBUSTION OF COAL AND THE PREVENTION OF SMOKE. By Wм. M. This book has been prepared with special reference to the generation of heat by the The presentation of this important subject is systematic and progressive. The ar- SMOKE PREVENTION AND FUEL ECONOMY. By BOOTH and KERSHAW. A complete treatise for all interested in smoke prevention and combustion, being based on the German work of Ernst Schmatolla, but it is more than a mere translation of the German treatise, much being added. The authors show as briefly as possible the principles of fuel combustion, the methods which have been and are at present in use, as well as the proper scientific methods for obtaining all the energy in the coal and burning it without smoke. Considerable space is also given to the examination of the waste gases, and several of the representative English and American mechanical stoker and similar appliances are described. The losses carried away in the waste gases are thoroughly analyzed and discussed in the Appendix, and abstracts are also here given of various patents on combustion apparatus. The book is complete and contains much of value to all who have charge of large plants. 194 pages. Illustrated. Price $2.50 GAS ENGINES AND GAS 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. This book abounds with hints and helps for the farm and suggestions for the home and housewife. There is so much of value in this book, that it is impossible to adequately describe it in such small space. Suffice to say that it is the kind of a book every farmer will appreciate and every farm home ought to have. 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. All money-making farms utilize power. Learn how to utilize power by reading the pages of this book. It is an aid to the result getter, invaluable to the up-to-date farmer, student, blacksmith, implement dealer and, in fact, all who WHAT IS SAID OF THIS BOOK: "Am much pleased with the book and find it to be very complete and up-to-date. I will heartily recommend it to students and farmers whom I think would stand in need of such a work, as I think it is an exceptionally good one."-N. S. Gardiner, Prof. in Charge, Clemson Agr. College of S. C.; Dept. of Agri. and Agri. Exp. Station, Clemson College, S. C. "I feel that Mr. Putnam's book covers the main points which a farmer should know." —R. T. Burdick, Instructor in Agronomy, University of Vermont, Burlington, Vt. "It will be a valuable addition to our library upon Farm Machinery."-James A. Farra, Inst. in Agri. Engineering, State University of Ky., Lexington, Ky. GASOLINE ENGINES: THEIR OPERATION, USE AND CARE. By A. HYATT VERRILL. This The simplest, latest and most comprehensive popular work published on Gasoline Engines, describing what the Gasoline Engine is; its construction and operation; how to install it; how to select it; how to use it and how to remedy troubles encountered. Intended for Owners, Operators and Users of Gasoline Motors of all kinds. work fully describes and illustrates the various types of Gasoline Engines used in Motor Boats, Motor Vehicles and Stationary Work. The parts, accessories and appliances are described, with chapters on ignition, fuel, lubrication, operation and engine troubles. Special attention is given to the care, operation and repair of motors, with useful hints and suggestions on emergency repairs and makeshifts. A complete glossary of technical terms and an alphabetically arranged table of troubles and their symptoms form most valuable and unique features of this manual. Nearly every illustration in the book is original, having been made by the author. Every page is full of interest and value. A book which you cannot afford to be without. 275 pages. 152 specially made engravings. (See page 16 for full description.) Price $1.50 GAS, GASOLINE AND OIL ENGINES. By GARDNER D. HISCox. Revised By VICTOR W. PAGÉ. Just issued, 1915 revised and enlarged edition. Every user of a gas engine GAS ENGINE CONSTRUCTION, OR HOW TO BUILD A HALF-HORSE- 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 MODERN GAS ENGINES AND PRODUCER GAS PLANTS. By R. E. MATHOT. A guide for the gas engine designer, user, and engineer in the construction, selection; purchase, installation, operation, and maintenance of gas engines. More than one book on gas engines has been written, but not one has thus far even encroached on the field covered by this book. Above all Mr. Mathot's work is a practical guide. Recognizing the need of a volume that would assist the gas engine user in understanding thoroughly the motor upon which he depends for power, the author has discussed his subject without the help of any mathematics and without elaborate theoretical explanations. Every part of the gas engine is described in detail, tersely, clearly, with a thorough understanding of the requirements of the mechanic. Helpful suggestions as to the purchase of an engine, its installation, care, and operation, form a most valuable feature of the work. 320 pages. 175 detailed illustrations. Price $2.50 THE MODERN GAS TRACTOR. By VICTOR W. PAGE. A complete treatise describing all types and sizes of gasoline, kerosene and oil tractors. Considers design and construction exhaustively, gives complete instructions for care, operation and repair, outlines all practical applications on the road and in the field. The best and latest work on farm tractors and tractor power plants. A work needed by farmers, students, blacksmiths, mechanics, salesmen, implement dealers, designers and engineers. 500 pages. Nearly 300 illustrations and folding plates. Price $2.00 GASOLINE ENGINES Their Operation, Use and Care. By A. HYATT VERRILL, The Simplest, Latest and Most Comprehensive This book describes what the Gasoline Engine is; its construction and operation; how to install it; how to select it; how to use it and how to remedy troubles encountered. Intended for Owners, Operator and Users of Gasoline Motors of all kinds. A complete glossary of technical terms and an alphabetically arranged table of troubles and their symptoms form most valuable and unique features of this manual. Nearly every illustration in the book is original, having been made by the author. Every page is full of interest and value. A book which you cannot afford to be without. CONTAINS SPECIAL CHAPTERS ON Types of Motors-Operation of Two-cycle Motor-Operation of Four-cycle Motor-Various Designs, Makes and Forms of Two-cycle Motors-Three-port Motors-Combination and Fourport Motors-Open-base and Distributor-valve Motors-Multiple-cyclinder Two-cycle MotorsVarious Forms, Designs, and Variations of Four-cycle Motors-Valves and their Operation -Valve Mechanisms and Motions-Automatic and Mechanically operated Valves-Sleeve-valve and Rotary-valve Motors-Opposed-cylinder and Offset-crank Motors, Freak Motors, and Horizontal Motors-Parts of Two-cycle Motors-Parts of Four-cycle Motors-Design and Construction of Motor Parts-Cylinders, Pistons, Crank-cases, Rings, Pins, Jackets, Shafts, Connecting-rods, Bearings. Cams and Gears-Cooling Methods-Water and Air-cooled Systems -Motor Accessories-Vaporizers and Carburetors-Pumps, Fans and Water CirculationLubrication-Gravity and Force-feed Oiler, Grease Cups and Oiling Methods-Principles of Electrical Ignition-Dynamos and Magnetos-High and Low-tension Magnetos-The Wico Igniter-Spark Coils-Spark Plugs-Vibrators-Timers-The Delco System-Make-and-break Ignition-Igniters-Operation of Igniters-Comparsion of Make-and-break and Jump SparkAltering Make-and-break to Jump Spark-Mufflers and Exhaust Devices-Governors-Fuel and Fuel Consumption-Oils and Greases-Installation-Piping and Wiring-Gaskets and Packings-Adjustments-General Care of Motors-Table of Motor Troubles with Causes and Remedies-Tools-Emergency Repairs and Makeshifts-Grinding Compounds, Polishes, Enamels, Paints, etc-Carbon Removers and Cleansers-Belts and Belt Dressings-Anti-freezing Mixtures-Glossary of Alphabetically Arranged Technical Terms with Explanations-Heat Values of Fuels-Size and Capacity of Tanks-on Pipe Table-U. S. Standard Screw Threads Cap-Screw Sizes-Drills for Screw Holes Surface and Volume Tables. JUST PUBLISHED MOTORCYCLES, SIDE CARS and CYCLECARS Their Construction, Management and Repair Author of "The Modern Gasoline Automobile," Etc., Etc. Contains over 350 illustrations showing the most valuable series of drawings pertaining to motorcycle design and construction ever published. PRICE $1.50 550 PAGES The material contained within the pages of this book is of a practical nature that can easily be assimilated and understood by anyone. The instructions given for control, maintenance and repair will be valuable for the novice rider, while the discussions of mechanical principles will undoubtedly appeal to the more experienced riders, dealers and others in the trade. GEARING AND CAMS BEVEL GEAR TABLES. By D. AG. ENGSTROM. Does away A book that will at once commend itself to mechanics and draftsmen. 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 $1.00 The laying out of cams is a serious problem unless you know how to go at it right. HYDRAULICS HYDRAULIC ENGINEERING. BY GARDNER D. HISCOX. A treatise on the properties, power, and resources of water for all purposes. Including ICE AND REFRIGERATION POCKET-BOOK OF REFRIGERATION AND ICE MAKING. By A. J. WALLIS- This is one of the latest and most comprehensive reference books published on the INVENTIONS PATENTS INVENTORS' MANUAL, HOW TO MAKE A PATENT PAY. This is a book designed as a guide to inventors in perfecting their inventions, taking KNOTS KNOTS, SPLICES AND ROPE WORK. By A. HYATT VERRILL. This is a practical book giving complete and simple directions for making all the most LATHE WORK 60 cents LATHE DESIGN, CONSTRUCTION AND OPERATION, WITH PRACTICAL A new revised edition, and the only complete American work on the subject, RACTICAL METAL TURNING. By JOSEPH G. HORNER. This important and practical subject is treated in a full and exhaustive manner, and TURNING AND BORING TAPERS. By FRED H. COLVIN. There are two ways to turn tapers; the right way and one other. This treatise has LIQUID AIR LIQUID AIR AND THE LIQUEFACTION OF GASES. By T. O'CONOR Sloane. This book gives the history of the theory, discovery, and manufacture of Liquid Air, and contains an illustrated description of all the experiments that have excited the wonder of audiences all over the country. It shows how liquid air, like water, is carried hundreds of miles and is handled in open buckets. It tells what may be expected from it in the near future. A book that renders simple one of the most perplexing chemical problems of the It is not only a work of scientific interest and authority, but is intended for the general |