THE ANNUAL 



OF 



SCIENTIFIC DISCOVERY: 



OR, 



YEAR-BOOK OF FACTS IN SCIENCE AND ART. 



EXHIBITING THE 



MOST IMPORTANT DISCOVERIES AND IMPROVEMENTS IN 



MECHANICS, ASTRONOMY, MINERALOGY, 



USEFUL ARTS, METEOROLOGY, GEOLOGY, 



NATURAL PHILOSOPHY, ZOOLOGY GEOGRAPHY, 



CHEMISTRY, BOTANY, ANTIQUITIES, 



TOGETHER WITH A LIST OF RECENT SCIENTIFIC PUBLICATIONS; 



A CLASSIFIED LIST OF PATENTS ; OBITUARIES OF EMINENT 



SCIENTIFIC MEN } AN INDEX OF IMPORTANT PAPERS 



IN SCIENTIFIC JOURNALS, REPORTS, ETC. 



EDITED BY 



DAVID A. WELLS, A. M., 



OP THE LAWRENCE SCIENTIFIC SCHOOL, CAMBRIDGE, 



AND 



GEORGE BLISS. JR. 



BOSTON: 

 GOULD AND LINCOLN, 



59 WASHINGTON STREET. 



1851. 



