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 hundred and thirty millions of the most intelligent people in the world. The f acilties 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, Paris, 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 all communications to IttUNN CO., No. 37ParkRow, New York City. Office in Washington, corner of 1 andfthstreets. Schedule of Patent Office Fees : On each Caveat................................................................$10 On filing each application for a Patent, (seventeen years).................. 15 On issuing eachoriginalPatent................................................$2C On appeal to Commissi on er of Patents........................................$20 On application for Reissue.....................................................$30 On application for Extension of Patent.......................................$50 On granting the extension......................................................$50 On filing a Disclaimer...........................................................$10 On an application for D esign (three and a half years).......................$10 On an application for Design (seven years)..................................$15 On an application for D esign (fourteen years)...............................$30 In addition to which there are some small revenue stamp taxes. Residents of Canada and Nova Scotia pay $500 on application.