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We can offer a discount of 50 per
cent on a limited number of the

Steam Boiler
Catechism

By

Robert Grimshaw, M. E., Ph. D.

"This is one of the best books on the Steam Boiler 1 have ever seen."

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The Regular Price is £2.00. Postage Prepaid.
Cut out the corner coupon and send it with one dollar to the

PRACTICAL PUBLISHING CO., 53 Broadway, New York

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EXPERT IN

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ELECTRICITY
MECHANICS
PATENT CAUSES

PATENTS

PA.TEJVTS r«AB£ MAHKS

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R. William Lotz

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Telephone Main 1432

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Best service, most reasonable rates. All business strictly confidential. Correspondence solicited. Consultation free. Nomisrepresentalions. Free guidebook on request.

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Registered In The U.S.Patent Office Register No. 5187.

RICHARD J. JACKER

SOLICITOR OF

United States and Foreign'Patents

MECHANICAL EXPERT 908 Monadnock Block - CHICAdO Both Telephones. Free Information.

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olumns at once; Sub-^ I tracts—Multi[>liei j Divides. Sim| pie, rapid, I hand

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tTO EMPLOYERS-thf. Technical World offers its services in bringing employers of skilled labor into communication with trained and efficient men. Write the Employment Department full particulars as to the qualifications necessary.

SITUATIONS VACANT

Wanted—The application of every competent technical man desirous of securing a position or bettering his present one, is wanted at once. We are constantly searching for highclass vacancies and always have from loo to 300 places open for the highest-grade men. Write to-day. The Engineering Agency, 1218 Monadnock Bldg., Chicago, 111.

SITUATIONS WANTED

Wanted—Position as Superintendent, Assistant, or Foreman of Electrical work, is wanted by a graduate of Baltimore Polytechnic and American School of Correspondence. Experienced in station work of all kinds, including storage batteries, direct and alternating current, two-phase and three-phase currents. Address The Technical World, No. 258.

Wanted—A young man experienced in Ship drafting and Mechanical drafting desires a position as Mechanical Draftsman. Two and one-half years' experience in machine shop. References. Address The Technical World, No. 259.

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Wanted—Position as Machine Shop Foreman or Chief Engineer of Electric Railway Station. Fifteen years' experience. First-class license. References. Address The Technical World, No. 262.

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cTVIore Power
for Less Money*

C The Rambler engine—horizontal type, large bore, long stroke—provides more power, in less space, at less cost to produce, than any other engine of any other make.

C. The Rambler gearing—a planetary system that transmits the engine impulses in a direct line to the wheels— reduces loss of power to the absolute minimum.

C The power-making and power-saving features of the

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help make it the most economical automobile on the market And it's as economical to keep as it is to buy. The Catalogue tells why. Send for it

Eight models, $650 to $1,350 at factory. Thos. B. Jeffery C&> Company, Kenosha, Wis., U. S. A

Chicago Branch: 304 Wabash Ave.

Boston Branch: 145 Columbus Ave.

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TEER clear of the rocks that have caused other engineers trouble, and place your reliance on Penberthy Injectors. Eighteen years on the market and over 350,000 in actual use, places them in their present high place — the standard injector of the world.

Write for catalogue describing our Injectors and other engineer's necessities.

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