FRAGMENTS OF SCIENCE 



FOR 



UNSCIENTIFIC PEOPLE: 



A SERIES OF DETACHED ESSAYS, LECTURES, 

 AND REVIEWS. 



BY 

 JOHN TYNDALL, LL. D., F. R. S., 



ATITIIOE OF "HEAT AS A "** OF, MfflifTTr." "T-""~^"^" ON SOUKD," ETC., ETC. 



ORK: 

 D. APPLETON AND COMPANY, 



549 & 551 BROADWAY. 



1871. 



