100 SCHOOL OF MINES LIBRARY. 



PRIME, Frederick, Jr. Desilverization of Lead by Zinc. Voi.vn., 



Pamphlets. Octavo series. 8VO. 18 pp., II. plates. 1870. 



Temple. Monograph of American Corbiculadce. Smith. 



Misc. Coll. 8vo. 80pp. Washington, 1865. 



PROCEEDINGS and Transactions of the Nova Scotia ^ 



Institute of Natural Science. I See under 



of the Academy of Natural Science, Philadel- | Journals. 



phia. 



at the Centennial of Chemistry, held August 1, 1874, at 



Northumberland, Pa. Hep. from Am. Chemist. 



4to. 209 pp. Philadelphia, 1875. 



of the American Iron and Steel Association, and of the Con 

 vention of Iron arid Steel Makers, held in Philadelphia. 

 Vol. VII., Pamphlets. Octavo series. 8vo. 22pp. Philadelphia, 1874. 



of the Annual Meetings of the Board of Super- ~ 



vising Inspectors of Steam Vessels. I Q 7 



of the Chemical Society of London. 



- of the Essex Institute. 



of the Lyceum of Natural History. 



PROCESSES of Manufacture and Uses of Printing, Gas-light, Pottery, 

 Glass and Iron. From the Encyclopedia Britannica. 



8vo. 392 pp. New-York, 1864. 



PROCTOR, Richard A. Transits of Venus. A Popular Account 

 of Past and Coming Transits, from the first observed by 

 Horrocks, A. D. 1839, to the transit of A. D. 2012. 



8vo. 232pp. New-York, 1875. 



PROFESSIONAL Papers of the Corps of Engineers of the United States 

 Army. See Barnard, J. G. ; also, Lee, Thomas. 



Papers of the Corps of Koyal Engineers. Vols. I. to X. 



4to. London, 1837-1849. 



PROFIL-ZEICHNUNGEN der Actien Gesellschaft fur Eisen-Industrie 

 zum Styrum. 17 Lithographed charts, folio. 



des Eisen-und Stahlwerkes Reschitza Banat. 



39 charts. Folio. 



PROSTRATION of American Industry. Repeal of the Ten Per Cent. 

 Reduction of Duties. Verbatim Report of an Interview be 

 tween a Delegation of Manufacturers and the Committee of 

 Ways and Means of the House of Representatives at Wash 

 ington, April 28, 1874. 8vo. 12pp. Philadelphia, 1874. 

 PROTEAUX, A. A Practical Guide for the Manufacturing of Paper 

 and Boards. Translated by H. Paine; to which is added, a 

 chapter on the Manufacture of Paper from Wood in the 

 United States, by Henry T. Brown. 



8vo. 292 pp. Philadelphia, 1866. 

 PRUD HoMME, L. Cours Pratique de Construction. 



2 vols. 8vo. Paris, 1870. 



PUGH, E. A Report upon a Plan for the Organization of Colleges of 

 Agriculture and the Mechanic Arts, with special reference to 

 the Organization of the Agricultural College of Pennsylvania. 

 Vol. XVIII., Pamphlets. Octavo series. 



8vo. 35 pp. Harrisburgh, 1864. 



