ANNUAL 



OF 



T 



SCIENTIFIC DISCOVER! 7 



OB, 



YEAR-BOOK OP FACTS IN SCIENCE AND AKT 



FOR 1856. 



EXHIBITING THE 



MOST IMPORTANT DISCOVERIES MD IMPROVEMENTS 



IN 



MECHANICS, USEFUL AETS, NATURAL PHILOSOPHY, CHEMlSTJli", 



ASTRONOMY, METEOROLOGY, ZOOLOGY, BOTANY, MINEE- 



ALOGY, GEOLOGY, GEOGRAPHY, ANTIQUITIES, ETC. 



TOGETHER WITH 



A LIST OF RECENT SCIENTIFIC PUBLICATIONS; A CLASSIFIED LIST OP 



PATENTS; OBITUARIES OF EMINENT SCIENTIFIC MEN; NOTES ON 



THE PROGRESS OF SCIENCE DURING THE YEAR 1855, ETC. 



EDITED BY 



DAVID A. WELLS, A.M., 



EDITOR OF THE "TEAR-BOOK OF AGRICULTURE," "FAMILIAR SCIENCE," 



"KNOWLEDGE is POWER," ETC. 



BOSTON: 

 OOULD AND LINCOLN, 



59 'WASHINGTON STREET. 



KEY,' YOilK: GEO. P. PUTNAM & CO.; SHELDON, BLAKEMAN & CO. 

 LONDON: TRUBNER & CO. 



1856. 



