MESSRS. MUNN & CO.. in connection with the publication ?? the SCIKNTIU'IC AMKUICAN, COD tin ue to examine improvements, and to act as doli itors of Patents for Inventors. - In tin* line of business they have had f rty-on- years experience, and now nnv unequaled faclfctiee fur the preparation of Paient Drawings, Specitlcatfcjins. and the groseention of Applications for Patents ift, the United tates. Canada, and Foreign Countries. Messrs Munn Co. ale ? attend to the preparation of Caveats. Copyrights for Books, Labeis. Reissues, .vseieuments. and Reports on Infringement s of Patents. All business intrusted to them is done with special care and promptness, on very reasonable terms A pampblet sent free of charee. on application, containing full information about Patents and how to procure them; directions concern in Labels. Copyrights, Designs. Patents. Appeals. Reissues. Infringements, Assignments, Rejected Cases. Hints on the Sale of Patents, etc. We also send, 'recof charge, a SVDODSIS of Foreign Patent Laws, showing tue cost aDO method of securing patents in all the principal countries of the avorld. . MUNN CO., Solicitor* of Patenta, 361 Broadway. New Tort-BRANCH OFFICKS.-No. 622 and 624 F Street, Pa-ciflo Building, near 7th Street. Washington, D. c.