ANNUAL 



OF 



SCIENTIFIC DISCOVERY: 



OB 



YEAR-BOOK OF FACTS IN SCIENCE AND ART 



FOR 1857. . 



EXHIBITING THE 



MOST IMPORTANT DISCOVERIES AND IMPROVEMENTS 



MECHANICS, USEFUL ARTS, NATURAL PHILOSOPHY, CHEMISTRY, 



ASTRONOMY, METEOROLOGY, ZOOLOGY, BOTANY, MINER- 



ALOGY, GEOLOGY, GEOGRAPHY, ANTIQUITIES, ETC. 



TOG-ETHEB WITH 



A LIST OF EECENT SCIENTIFIC PUBLICATIONS 5 A CLASSIFIED LIST OF 



PATENTS ; OBITUAJEIES OF EMINENT SCIENTIFIC MEN ; NOTES OM 



THE PEOGEESS OF SCIENCE DUEINGr THE TEAE 1856, ETC. 



ED ITED BY 



DAVID A. WELLS, A.M., 



EDIT03 OF THE "YEAR-COOK OF AGRICULTURE," "FAMILIAR SCIENCE," 



"KNOWLEDGE is POWER," ETC. 



BOSTON: 



QOULD AND LINCOLN, 



59 WASHINGTON STREET. 



KSW YORK: G. r. PUTNAM & co. ; SHELDON*, BLAEEMAX & co. 

 LONDON: TRUBNER & co. 



1857. 



