E S SATS 



FLOATmG-MATTER OF THE AIR 



IN RELATIOM TO 



PUTREFACTION AND INFECTION. 



JOHN TYNDALL, r.K.S. 

 (m. d. Tubingen). 



inEW YORK: 

 D. APPLETON AND COMPANY, 



], 8, AMD 6 BOND STREET 

 1884. 



