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

APPLETONS'

CYCLOPAEDIA OF APPLIED MECHANICS.

A DICTIONARY OF MECHANICAL ENGINEERING AND THE MECHANICAL ARTS.

Illustrated by 5,000 Engravings.

_Edited by PARK BENJAMIN, Ph.D._

This valuable work is now being published in semi-monthly parts, at
fifty cents each. Active agents wanted. For terms and territory
address GEO. W. DAVIS, care of D. APPLETON & CO., New York.

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In this line of business they have had OVER THIRTY YEARS' EXPERIENCE,
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in all the principal countries of the world. American inventors should
bear in mind that, as a general rule, any invention that is valuable
to the patentee in this country is worth equally as much in England
and some other foreign countries. Five patents--embracing Canadian,
English, German, French, and Belgian--will secure to an inventor the
exclusive monopoly to his discovery among about ONE HUNDRED AND FIFTY
MILLIONS of the most intelligent people in the world. The facilities
of business and steam communication are such that patents can be
obtained abroad by our citizens almost as easily as at home. The
expense to apply for an English patent is $75; German, $100; French,
$100; Belgian, $100; Canadian, $50.

_Copies of Patents_.--Pe