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Modern Practical Electricity. By R. Mullineux Wal
mesley. Volume IV. Pages 318. Published by W. T. Keener & Company, Chicago, Ill. Price, $3.00 per volume.
This is VOLUME IV of the work reviewed in the May issue of this magazine. The inductor alternator is discussed, with the application of the turbine for driving of the same, together with armature windings for two-phase and three-phase machines. The theory of alternator armature reaction, characteristic curves, and excitation, is taken up briefly. The connection of generators in parallel, both direct-and alternating-curr-o is treated in Chapter 3, the subject paralleling of alternators, of course, involving that of synchronizing.
Chapter 4 is devoted to continuous current motors of various types and makes. The latter part of the book is devoted to electrical testing and the different forms of galvanometers, meters, and measuring instruments.
pensive for the young workman, and are
The terms used in the branch of joinery are first explained. The simplest forms of stairs are considered first, so that the reader may advance step by step. The numerous diagrams show just how to place the strings, treads, and risers. Winding stairs are fully explained, as this form is more difficult of construction than the straight form.
Some excellent designs of newels are shown, as are also full-page illustrations of staircases.
Constructive Drawing. A Textbook for Home Instruc
tion, High Schools, Manual Training Schools, Technical Schools, and Universities. Arranged by Herman Hanstein, Supervisor of Drawing in the Chicago High Schools. Second Edition, Revised. Cloth. Pages 72. Plates. Published by Keuffel & Esser Company, Chicago, New York, St. Louis, and San Francisco. Price, $1.00.
Stair Building Made Easy. By Fred T. Hodgson.
Pages 160. Cloth. The Industrial Publication Com
pany, New York. Price, $1.00. AS THE AUTHOR SAYS in the preface, most books on this subject are too ex
AMONG NEW PUBLICATIONS in technical educational literature, this little book is timely and welcome. It covers thoroughly the most important constructions
Recent Engineering Books for Students
Abbott's Telephony, 6 volumes,
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Forge Practice. By John Lord Bacon. Published by
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Friction and Lubrication. A Handbook for Engineers,
Mechanics, Superintendents, and Managers, by WillPurification of Water.
iam M Davis. Cloth. Illustrated. Indexed. 8vo.
Pages 250. Published by the Lubrication Publishing
Company, Pittsburg, Pa. Price, $2.00.
A PRACTICAL BOOK by a practical man. Boiler and Engine Test of a
Almost all books dealing with the Small Steamboat.
various kinds of machinery have a few WARREN JOHNSON. Louisiana En
pages on lubrication; but here are 250 gineering Society.
pages just on this subject. The book
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lubricants themselves, and the methods of Engineering Societies of applying the lubricants. The author
"begins at the beginning,” starts with July 1904
the reasons why lubricants are necessary, 30 Cents per Copy $3.00 per Annum
by a concise discussion on friction and
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An important chapter is that on test257 So. Fourth St., Philadelphia, Pa. ing oils. The various tests for viscosity,
flash point, burning point (fire test), specific gravity, evaporation, etc., are
carefully explained. Directions for makMention The Technical World.
INTERESTED IN MECHANICS?
Our monthly journal, MODERN MACHINERY, keeps you informed on progress in the mechanical field. Nicely illustrated, interestingly written. Valuable alike to shop man or plant owner. We give here the table of contents of the July, 1904, number. MACHINERY EXHIBIT AT ST. LOUIS.-A RATIONAL BASIS FOR WAGES.-CHAS.C. CHRISTENSEN, M.E.-TRE HERSTAL NATIONAL ARMORY.-MOLDING MACHINES.—THE ALTIMETER.-A TRAVELING MACHINE SHOP. -FORMING TWIST DRILLS.-PHOTO TAKEN BY RADIUM.-GERMAN HIGH-SPEED LOCOMOTIVE.-IRON AND STEE PROSPECTS IN FRANCE.-MACHINE FOR SPLITTING WOOD.-NEW FLOATING DOCK IN GERMANY.COST OF STEAM VS. HORSE POWER-REFRIGERATING MACH'Y IN BATTLESHIPS.- POWERFUL TOYS OF WEALTHY AMERICANS.-WASTED MACHINERY ON PANAMA CANAL.-ELECTRIC POWER ERA IN SCOTLAND. -PNEUMATIC MAIL TUBE TESTS IN CHICAGO.-THE PAY CHECK SYSTEM.-STORY TOLD AT WORLD'S PAIR.-NEW MACHINERY OF THE MONTH.-HINTS IN MECHANICAL ENGINEERING.-QUESTIONS AND ANSWERS.
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Did it ever occur to you that perhaps you walked miles
Machinery, Pedometer is an ingenious aff air that goes when
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Mention The Technical World.
ing a chemical analysis with simple instruments, add to the practical value of the work. The dividing up of the book into short chapters adds much to its convenience, as information upon the lubrication of any given class of machinery is readily found. There are chapters on lubricating appliances ; lubrication of gas engines, automobiles, and street-railway cars; oiling devices and systems; treatment of hot bearings; lubrication of refrigerating, mining, and textile machinery, etc.
This is by far the best book we have ever seen on this subject, and one that is worth far more than the price asked for it.
Magazines Cassier's Magazine (September)—New York "MATHEMATICS IN ENGINEERING” is the title of a discussion on the value and use of pure mathematics in engineering. The writer, Mr. Thorburn Reid, says mathematicians unconsciously grow to think of the solution of a problem, not as a means to an end, but as the end itself. He advances the idea that mathematics would be more valuable if properly taught. The fact that few teachers are practical engineers is responsible for
the prevailing defects. As the teacher Containing Descriptive and Technical
seldom, if ever, has an opportunity to Articles by the World's Best
check his results by practical application, Telephone Engineers
he naturally gives problems of little A Subscriber Says:
practical value, and his methods of an"My interest for your
alysis are either defective or absolutely wrong.
Many incidents are cited, showing the value of practical knowledge, some proving that a shrewd estimate is often as
reliable as extended calculation.
“Vacuum-Tube Lighting," by D. McBerlin, Germany.
Farlan Moore, describes the new forin Published Weekly. Subscription
of illumination based upon a gaseous Price $1.00 a year. Write for Free electrical conductor for the source of Sample Copy. Special Inducements light. The article sets forth the adto Students who will Act as Agents.
vantages of the vacuum tube over the American Telephone Journal arc light, the main points being its difMORTON BUILDING
fusion and closer imitation of daylight. NEW YORK
The illustrations show rooms lighted by this method, and diagrams indicate rel
ative locations of parts. Mention The Technical World.