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—American, English, French, Belgian and Prussian—will secure an inventor exclusive monoply to his discovery among ONE HTOTDEED AND THIRTY MILLIONS of tho most intelligent people in the world. The facilties of business and steam communication are such that patents can be obtained abroad by our citizens almost as easily as at home. MUNN & Co. have prepared and taken a larger number of European patents than any other American Agency. They have Agents of great experience in London, Paria, Berlin, and other cities. For instructions concerning Foreign Patents, Reissues, Interferences, Hints on Selling Patents, Rules and Proceedings at the Patent Office, the Patent Laws, etc., see our Instruction Book. Sent free by mail on application. Those who receive more than one copy thereof will oblige by presenting it to their friends. Address allcommuni ationsto MUNN & CO., No. 37 Park ROTT, New York City Office in Washington, corner of F and 7th streets.