A New and Valuable Work for the Practical Mechanic and Engineer.

APPLETONS'

CYCLOPÆDIA OF APPLIED MECHANICS.

A DICTIONARY OF

MECHANICAL ENGINEERING AND THE MECHANICAL ARTS.

ILLUSTRATED BY 5,000 ENGRAVINGS.

Edited by PARK BENJAMIN, Ph. D.

CONTRIBUTORS.
T. A. EDISON, Ph. D.ABRAM L. HOLLEY, C. E.
RICHARD H. BULL, C. E.COLEMAN SELLERS, M. E.
SAMUEL WEBBER, C. E.Prof. C. W. McCord.
CHARLES E. EMERY, C. E.IRVING M. SCOTT, Esq.
Prof. DE VOLSON WOOD.F. A. McDowell, C. E.
JOSHUA ROSE, M. E.H. A. MOTT, Jr., Ph. D.
PIERRE de P. RICKETTS, Ph. D.W. H. PAYNE, C. E.
Hon. ORESTES CLEVELAND.GEORGE H. BENJAMIN, M. D.
W. T. J. KRAJEWSKI, C. E.THERON SKELL, C. E.
S. W. GREEN, Esq.WILLIAM KENT, C. E.
JOHN BIRKINBINE, C. E.W. E. KELLY, Esq.
HENRY L. BREVOORT, C. E.F. T. THURSTON, C. E.
Lieut. A. A. BOYD, U. S. N.JOHN HOLLINGSWORTH, Esq.

Appletons' Cyclopædia of Applied Mechanics of 1879 is a new work, and not a revision of the former Dictionary of Mechanics of 1850. It aims to present the best and latest American practice in the mechanical arts, and to compare the same with that of other nations. It also exhibits the extent to which American invention and discovery have contributed to the world's progress during the last quarter century. Its production is deemed timely in view of the existing popular interest in the labors of the mechanic and inventor which has been awakened by the great International Expositions of the last decade, and by the wonderful discoveries made by American inventors during the past three years.