ANNUAL 



OF 



SCIENTIFIC DISCOVERY 



R, 



YEAR-BOOK OF FACTS IN SCIENCE AND ART 



FOB 



1866 AND 1867. 



EXHIBITIKG THE 



MOST IMPORTANT DISCOVERIES AND IMPROVEMENTS 



IN 



MECHANICS, USEFUL ARTS, NATURAL PHILOSOPHY, CHEMISTRY, 



ASTRONOMY, GEOLOGY, ZOOLOGY, BOTANY, MINERALOGY, 



METEOROLOGY, GEOGRAPHY, ANTIQUITIES, ETC. 



TOGETHER WITH 



NOTES ON THE PROGRESS OF SCIENCE DURING THE YEARS, 1865 AND 1866; 



A LIST OF RECENT SCIENTIFIC PUBLICATIONS; OBITUARIES 



OF EMINENT SCIENTIFIC MEN, ETC. 



EDITED BY 



SAMUEL KNEELAND, A.M., M.D., 



FELLOW OF THE AMERICAN ACADEMY OP ARTS AND SCIENCES, SECRETARY OF TUK 

 MASSACHUSETTS INSTITUTE OF TECHNOLOGY, ETC. 



BOSTON: 



g-otjijD a. isr d LiisrcoLisr, 



69 WASHINGTON STREET. 



KEW YORK: SHELDON AND COMPANY. 



CINCINNATI: GEORGE S. BLANCHARD & CO. 



LONDON: TRUBNER & CO. 



1867. 



