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Messrs. Munn&Co., in connection with the publication of the Scientific American, continue to examine improvements, and to act as Solicitors of Patents for Inventors. In this line of business they have had forty years' ea;. pe ie, and now have unequaled facHitMs for the preparation of Patent Drawings, Specifications, and the prosecution of Applications for Patents in the United States, Canada, and Foreign Countries. Messrs Munn&Co. also attend to the preparation of Caveats, Copyrights for Books, Labels, Reissues, Assignments, and Reports on Infringements of Patents. All business Intrusted to them is done with special care and promptness, on very reasonable terms. A pamphlet sent free of charge, on application, con- TKE Scientific American Supplement. The Scientific American Supplement is a separate and distinct publ cation from 'I'H Scientifio American. but is uniform therewith in size, every number containing sixteen large pages. The Scientific American Supplement is published weekly, and includes a very wide range of contents. It presents the most recent papers by eminent writers in al the principal departments of Science and the Useful Arts, embracing Biology. Geology, Mineralogy, Natural History, Geography, Archreology. Astronomy, Chemistry, Electricity, Light. Heat, Mechanical Engineering. Steam and Rail. way Engineering, Mining, Ship Building Marine Engineering, Photography, Techhnoiogy, Manufacturing industries, Sanitary Engineering, Agriculture, Horticulture, Domestic Economy, Biography, Medicine, etc. A vast amount of fresh and valuable information pertaining to these and allied subjects Is given, the whole profusely illustrated with engravings. The most important Engineering Works, Mechanisms, and Manufactures at home and abroad are represented and described In the Supplement. Price for the Suppi-emsnt for the United States and Canada. 5.00 a year, or one copy of tbe Scientific American and one copy of the Supplement. both mailed for one year for 7.00. Address and remit by postal order or check, MUNN&Co.. 361 Broadway, N. Y., Publishers Scientific American. To Foreign lSubscribers.--Under the facilities of the Postal Union. the SCIENTIFIC Amkrioan is now sent by post direct from New York, with regularity, to subscribers in Great Britain. Indian Australia, and all other British colonies; to France, Austria, Belgium, Germany. Russia, and other European States; Japan. Brazil, Mexico, and all States of Central and South America. Terms, when sent to foreign countries, Canada excepted, gol:l,for Scientific American, one year; 9, gold. for both Scramic American and Supplement for one year. This includes postage, 'Which we pay. Remit by postal order or draft to order of Munn&Co., 361 Broadway, New York.
