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New Fourth Edition

Revised and Enlarged

Suplee's

Mechanical Engineer's Reference Book

A Hand-book of Tables, Formulas, and Methods for Engineers, Students and Draftsmen

By Henry Harrison Suplee, B.Sc., M.E.

Member American Society of Mechanical Engineers; Membre de la Société Des Ingénieurs Civils de France; Mitglied des Vereines Deutscher Ingenieure

Member of The Franklin Institute.

Illustrated. 964 pages. 16mo. Full limp leather, round corners, gilt edges, thumb index. $5.00 net

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HIS book is intended to form a standard hand-book

for the mechanical engineer and the designer of machinery, supplying in convenient form the general information which is constantly required. In the new fourth edition the few errors in the previous edition have been corrected and an Appendix of forty pages added, containing a variety of useful information.

Several features make this the one up-to-date complete accurate work for mechanical engineers,-more space has been devoted to Mathematics than in any other similar reference book in English,-the subject of machine design is very amply treated, the arrangement of the matter is unexcelled, and fully illustrated, which together with the complete thumb index, makes it just the book for quick reference.

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J. B. LIPPINCOTT COMPANY

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Philadelphia

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DEVOTED TO SCIENCE AND THE MECHANIC ARTS

Edited by R. B. OWENS, E.E., M.A., D.Sc., F.R.S.C.

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E. H. Sanborn

No. 6

Possible Sources of Potash in America. By Frank K. Cameron
The Cracking and Distillation of Petroleum Under Pressure. By Benjamin T.
Brooks

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The Transformation of Color-mixture Equations from One System to Another.
By Herbert E. Ives

On the Boiling-point of Aqueous Solutions of Nitric Acid at Different Pressures.
Part II. The Influence of Water-retaining Agents on the Composition
of the Mixture of Maximum Boiling-point. By Henry Jermain Maude
Creighton and Herschel Gaston Smith

The Production of Light by Animals. By Ulric Dahlgren
Notes from the U. S. Bureau of Standards:

Measurements for the Household

Notes from Nela Research Laboratory:

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Visual Pattern-discrimination in the Vertebrates. IV.-Effective Differences in
Direction of Visible Striæ for the Monkey and the Domestic Chick

Visual Pattern-discrimination in the Vertebrates. A Demonstration of the Dog's
Deficiency in Detail-vision

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739

The Franklin Institute:

Committee on Science and the Arts, Stated Meeting, November 3, 1915

Section of Physics and Chemistry, Joint Meetings with Philadelphia Section of American
Chemical Society, October 28 and November 4, 1915; Stated Meeting,
November 11, 1915.

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A Relation Concerning the Distribution of an Electrolyte between Water and Some
Second Solvent and its Dissociation Constant in Aqueous Solution

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FIVE DOLLARS PER YEAR (Foreign Postage Additional).

SINGLE NUMBERS, FIFTY CENTS.
Entered at the Post-office at Philadelphia, Pa., as second-class matter.
Copyright, 1915, by THE FRANKLIN INSTITUTE.

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INDEX TO ADVERTISERS

PROFESSIONAL CARDS, PAGES XXVI AND XXVII

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FRANKLIN INSTITUTE, School of
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page.

Hamlin & Morrison, Analytical
Chemists, Philadelphia . . xxvi
Howson & Howson, Patent So-
licitors, Phila., New York and
Washington. Second cover page

...

United Gas Improvement Co.. . ..xxiii
Watson & McDaniel Co., Philadel-
phia.
Weber, F. & Co., Draughting and
Engineering Instruments.

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xxvii

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Weston Electrical Instrument Co.,
Ammeters and Voltmeters.
Wiedersheim & Fairbanks, Patents xxvii
Wood, Alan, Iron and Steel Co.

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