A POPULAR 



HISTORY OF SCIENCE 



ROBERT ROUTLEDGE, B.Sc. (LOND)., F.C.S. 



Author of 



DISCOVERIES AND INVENTIONS OF THE NINETEENTH CENTURY 

 "SCIENCE IN SPORT MADE PHILOSOPHY IN EARNEST," ETC. 



LONDON 

 GEORGE ROUTLEDGE AND SONS 



BROADWAY, LUDGATE HILL 



NEW YORK : 416 BROOME STRJEET 

 * 1881 



