ANNUAL 



OF 



SCIENTIFIC DISCOVERY: 



OR, 



YEAR-BOOK OF FACTS IN SCIENCE AND ART 



FOR 1869 



5 



EXHIBITING THE 



MOST IlfdCIAXT DISCdVECIES AND MPROVEMEMS 



IN 



MECHANICS, USEFUL ARTS, NATURAL PHILOSOPHY, CHEMISTRY, 



AbTRONOMY, GEOLOGY, lilOLOGY, BOTANY, MINERALOGY, 



METEOROLOGY, GEOGRAPHY, ANTIQUITIES, ETC., 



TOGETHER WITH 



NOTES OK THE PROGRESS OF SCIENCE DURING THE YEAR 18C8; A LIST 



OF RECENT SCIENTIFIC PUBLICATIONS J OBITUARIES OF 



E3IINENT SCIENTIFIC MEN, ETC. 



EDITED BY 



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



FEIXOW OF THE AMKRICAIT ACADEMY OF ARTS AND SCIENCES, SKCEETART OF AND INSTRTJO- 

 XOK IN ZOOLOGY AND PHYSIOLOGY IN THE MASSACHUSETTS INSTITUTK 



OF TECHNOLOGY, ETC. 



BOSTON : 



GOTJLr) J^JSriD 1L.1N C O TLaN, 



5 9 WASHINGTON S T U K E T. 



NEW YOKK: SHELDON AXD COMPANY. 



CINCINXATI: GEO. S. BLAXCHAUD i CO. 



LOXDOX : TKLBXEli &. CO. 



1 8 G 9 . 



