ELECTRICITY

ARITHMETIC OF ELECTRICITY. By Prof. T. O'CONOR SLOANE. A practical treatise on electrical calculations of all kinds reduced to a series of rules, all of the simplest forms, and involving only ordinary arithmetic; each rule illustrated by one or more practical problems, with aetailed solution of each one. This book is classed among the most useful works published on the science of electricity covering as it does the mathematics of electricity in a manner that will attract the attention of those who are not familiar with algebraical formulas. 160 pages. $1.00

COMMUTATOR CONSTRUCTION.

By WM. BAXTER,

JR. The business end of any dynamo or motor of the direct current type is the commutator. This book goes into the designing, building, and maintenance of commutators, shows how to locate troubles and how to remedy them; everyone who fusses with dynamos needs this. 25 cents

DYNAMO BUILDING FOR AMATEURS, OR HOW TO CONSTRUCT A FIFTY WATT DYNAMO. BY ARTHUR J. WEED, Member of N. Y. Electrical Society. This book is a practical treatise showing in detail the construction of a small dynamo or motor, the entire machine work of which can be done on a small foot lathe.

Dimensioned working drawings are given for each piece of machine work and each operation is clearly described.

This machine when used as a dynamo has an output of fifty watts; when used as a motor it will drive a small drill press or lathe. It can be used to drive a sewing machine on any and all ordinary work.

The book is illustrated with more than sixty original engravings showing the actual construction of the different parts. Paper. Paper 50 cents Cloth $1.00

ELECTRIC FURNACES AND THEIR INDUSTRIAL APPLICATIONS. By J. WRIGHT. This is a book which will prove of interest to many classes of people; the manufacturer who desires to know what product can be manufactured successfully in the electric furnace, the chemist who wishes to post himself on the electro-chemistry, and the student of science who merely looks into the subject from curiosity.

288 pages. $3.00

ELECTRIC LIGHTING AND HEATING POCKET BOOK. By SYDNEY F. WALKER. This book puts in convenient form useful information regarding the apparatus which is likely to be attached to the mains of an electrical company. Tables of units and equivalents are included and useful electrical laws and formulas are stated. 438 pages, 300 engravings.

$3.00

ELECTRIC TOY MAKING, DYNAMO BUILDING, AND ELECTRIC MOTOR CONSTRUCTION. This work treats of the making at home of electrical toys, electrical apparatus, motors, dynamos, and instruments in general, and is designed to bring within the reach of young and old the manufacture of genuine and useful electrical appliances. 185 pages. Fully illus$1.00

trated.

ELECTRIC WIRING, DIAGRAMS AND SWITCHBOARDS. By NEWTON HARRISON. This is the only complete work issued showing and telling you what you should know about direct and alternating current wiring. It is a ready reference. The work is free from advanced technicalities and mathematics. Arithmetic being used throughout. It is in every respect a handy, well-written, instructive, comprehensive volume on wiring for the wireman, foreman, contractor or electrician. 272 pages, 105 illustrations. $1.50

ELECTRICIAN'S HANDY BOOK. BY PROF. T. O'CONOR SLOANE. This work is intended for the practical electrician, who has to make things go. The entire field of Electricity is covered within its pages. It contains no useless theory; everything is to the point. It teaches you just what you should know about electricity. It is the standard work published on the subject. Forty-one chapters, 610 engravings, handsomely bound in red leather with titles and edges in gold. $3.50

ELECTRICITY IN FACTORIES AND WORKSHOPS, ITS COST AND CONVENIENCE. By ARTHUR P. HASLAM. A practical book for power producers and power users showing what a convenience the electric motor, in its various forms, has become to the modern manufacturer. It also deals with the conditions which determine the cost of electric driving, and compares this with other methods of producing and utilizing power. 312 pages. Very fully illustrated.

$2.50

ELECTRICITY SIMPLIFIED. BY PROF. T. O'CONOR SLOANE. The object of "Electricity Simplified" is to make the subject as plain as possible and to show what the modern conception of electricity is; to show how two plates of different metals immersed in acid can send a message around the globe; to explain how a bundle of copper wire rotated by a steam engine can be the agent in lighting our streets, to tell what the volt, ohm and ampere are, and what high and low tension mean; and to answer the questions that perpetually arise in the mind in this age of electricity. 172 pages. Illustrated. $1.00

HOW TO BECOME A SUCCESSFUL ELECTRICIAN. BY PROF. T. O'CONOR SLOANE. An interesting book from cover to cover. Telling in simplest language the surest and easiest way to become a successful electrician. The studies to be followed, methods of work, field of operation and the requirements of the successful electrician are pointed out and fully explained. 202 pages. Illustrated. $1.00

MANAGEMENT OF DYNAMOS. By LUMMIS-PATERSON. A handbook of theory and practice. This work is arranged in three parts. The first part covers the elementary theory of the dynamo. The second part, the construction and action of the different classes of dynamos in common use are described; while the third part relates to such matters as affect the practical management and working of dynamos and motors. 292 pages, 117 illustrations. $1.50

STANDARD ELECTRICAL DICTIONARY. By Prof. T. O'CONOR SLOANE. A practical handbook of reference containing definitions of about 5,000 distinct words, terms and phrases. The definitions are terse and concise and include every term used in electrical science. 682 pages, 393 illustrations. $3.00

SWITCHBOARDS. By WILLIAM BAXTER, JR. This book appeals to every engineer and electrician who wants to know the practical side of things. All sorts and conditions of dynamos, connections and circuits are shown by diagram and illustrate just how the switchboard should be connected. Includes direct and alternating current boards, also those for arc lighting, incandescent, and power circuits. Special treatment on high voltage boards for power transmission. 190 pages. Illustrated. $1.50

TELEPHONE CONSTRUCTION, INSTALLATION, WIRING, OPERATION AND MAINTENANCE. By W. H. RADCLIFFE and H. C. CUSHING. This book gives the principles of construction and operation of both the Bell and Independent instruments; approved methods of installing and wiring them; the means of protecting them from lightning and abnormal currents; their connection together for operation as series or bridging stations; and rules for their inspection and maintenance. Line wiring and the wiring and operation of special telephone systems are also treated. 180 pages, 125 illustrations. $1.00

WIRING A HOUSE. By HERBERT PRATT. Shows a house already built; tells just how to start about wiring it. Where to begin; what wire to use; how to run it according to insurance rules, in fact just the information you need. Directions apply equally to a shop. Fourth edition."

25 cents

WIRELESS TELEPHONES AND HOW THEY WORK. By JAMES ERSKINE-MURRAY. This work is free from elaborate details and aims at giving a clear survey of the way in which Wireless Telephones work. It is intended for amateur workers and for those whose knowledge of Electricity is slight. Chapters contained: How We Hear-Historical-The Conversion of Sound into Electric Waves - Wireless Transmission-The Production of Alternating Currents of High Frequency-How the Electric Waves are Radiated and Received-The Receiving Instruments-Detectors-Achievements and ExpectationsGlossary of Technical Work.

Cloth.

ENAMELING

$1.00

HENLEY'S TWENTIETH CENTURY RECEIPT BOOK.

Edited by GARDNER D. HISCOX. A work of 10,000 practical receipts, including enameling receipts for hollow ware, for metals, for signs, for china and porcelain, for wood, etc. Thorough and practical. See page 24 for full description of this book. $3.00

FACTORY MANAGEMENT, ETC.

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MODERN MACHINE SHOP CONSTRUCTION, EQUIPMENT AND MANAGEMENT. By O. E. PERRIGO, M.E. work designed for the practical and every-day use of the Architect who designs, the Manufacturers who build, the Engineers who plan and equip, the Superintendents who organize and direct, and for the information of every stockholder, director, officer, accountant, clerk, superintendent, foreman, and workman of the modern machine shop and manufacturing plant of Industrial America. $5.00

FUEL

COMBUSTION OF COAL AND THE PREVENTION OF SMOKE. By Wм. M. BARR. To be a success a fireman must be "Light on Coal.' He must keep his fire in good condition, and prevent, as far as possible, the smoke nuisance. To do this, he should know how coal burns, how smoke is formed and the proper burning of fuel to obtain the best results. He can learn this, and more too, from Barr's "Combustion of Coal." It is an absolute authority on all questions relating to the Firing of a Locomotive. Nearly 350 pages, fully illustrated. $1.00 By

SMOKE PREVENTION AND FUEL ECONOMY. BOOTH and KERSHAW. As the title indicates, this book of 197 pages and 75 illustrations deals with the problem of complete combustion, which it treats from the chemical and mechanical standpoints, besides pointing out the economical and humanitarian aspects of the question. $2.50

GAS ENGINES AND GAS

CHEMISTRY OF GAS MANUFACTURE. By H. M. ROYLES. A practical treatise for the use of gas engineers, gas managers and students. 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. Miscellaneous Extracts. Useful Tables. $4.50

Metropolis Gas.

GAS ENGINE CONSTRUCTION, Or How to Build a HalfHorse-power Gas Engine. By PARSELL and WEED. A practical treatise 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 dimensioned working drawings giving clearly the sizes of the various details. 300 pages. $2.50

GAS, GASOLINE, AND OIL ENGINES. BY GARDNER D. HISCOX. Just issued, 18th revised and enlarged edition. Every user of a gas engine needs this book. Simple, instructive, and right up-to-date. The only complete work on the subject. Tells all about the running and management of gas, gasoline and oil engines as designed and manufactured in the United States. Explosive motors for stationary, marine and vehicle power are fully treated, together with illustrations of their parts and tabulated sizes, also their care and running are included. Electric Ignition by Induction Coil and Jump Sparks are fully explained and illustrated, including valuable information on the testing for economy and power and the erection of power plants.

The special information on PRODUCER and SUCTION GASES included cannot fail to prove of value to all interested in the generation of producer gas and its utilization in gas engines.

The rules and regulations of the Board of Fire Underwriters in regard to the installation and management of Gasoline Motors is given in full, suggesting the safe installation of explosive motor power. A list of United States Patents issued on Gas, Gasoline and Oil Engines and their adjuncts from 1875 to date is included. 484 pages. 410 engravings. $2.50 net

MODERN GAS ENGINES AND PRODUCER GAS PLANTS. By R. E. MATHOT, M.E. A practical treatise of 320 pages, fully illustrated by 175 detailed illustrations, setting forth the principles of gas engines and producer design, the selection and installation of an engine, conditions of perfect operation, producer-gas engines and their possibilities, the care of gas engines and producer-gas plants, with a chapter on volatile hydrocarbon and oil engines. This book has been endorsed by Dugal Clerk as a most useful work for all interested in Gas Engine installation and Producer Gas. $2.50

GEARING AND CAMS

No one

BEVEL GEAR TABLES. By D. AG. ENGSTROM. who has to do with bevel gears in any way should be without this book. The designer and draftsman will find it a great convenience, while to the machinist who turns up the blanks or cuts the teeth, it is invaluable, as all needed dimensions are given and no fancy figuring need be done. $1.00

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CHANGE GEAR DEVICES. By OSCAR E. PERRIGO. book for every designer, draftsman and mechanic who is interested in feed changes for any kind of machines. This shows what has been done and how. Gives plans, patents and all information that you need. Saves hunting through patent records and reinventing old ideas. A standard work of reference. $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 air-lift pumps. With 300 figures and diagrams and 36 practical tables. 320 pages. $4.00

ING,

ICE AND REFRIGERATION

POCKET BOOK OF REFRIGERATION AND ICE MAKBy A. J. WALLIS-TAYLOR. This is one of the latest and most comprehensive reference books published on the subject of refrigeration and cold storage. It explains the properties and refrigerating effect of the different fluids in use, the management of refrigerating machinery and the construction and insulation of cold rooms with their required pipe surface for different degrees of cold; freezing mixtures and non-freezing brines, temperatures of cold rooms for all kinds of provisions, cold storage charges for all classes of goods, ice making and storage of ice, data and memoranda for constant reference by refrigerating engineers, with nearly one hundred tables containing valuable references to every fact and condition required in the installment and operation of a refrigerating plant.

$1.50