ANNUAL' 



O F 



SCIENTIFIC DISCOVERY: 



R, 



YEAR-BOOK OF FACTS IN SCIENCE AND ART 



FOR 1864. 







EXHIBITING THB 



MOST IMPORTANT DISCOVERIES AND IMOVEMTS 



1 N 



MECHANICS, USEFUL ARTS, NATURAL miLOSOrHY. CHEMISTRY, 



ASTRONOMY, GEOLOGY, ZOOLOGY, BOTANY, MINERALOGY, 



METEOROLOGY, GEOGRAPHY, ANTIQUITIES, ETC. 



TOGETHER WITH 



NOTES ON THE PROGRESS OF SCIENCE DURING THE YEAR 1863; A LIST 



OF RECENT SCIENTIFIC PUBLICATION'S; OBITUARIES OF 



EMINENT SCIENTIFIC MEN, ETC. 



EDITED BY 



DAYID A. WELLS, A.M.,M.D., 



AUTHOR OF PRINCIPLES OF NATURAL PHILOSOPHY, PRINCIPLES OF CHEMISTRY, 



FIRST PRINCIPLES OF GEOLOGY, ETC. 



BOSTON: 



GOULD AND LINCOLN, 



59 WASHINGTON STREET. 



NEW YORK: SHELDON AND COMPANY. 



CINCINNATI: GEORGE S. BLANCIIARD. 



LONDON: TRUBNER & CO. 



1864. 



