HISTORY OF OUR KNOWLEDGE OF BACTERIA. 1 07 



from a harmless into a pathogenic form, as asserted 

 by Blichner.* 



The second classification of Cohn (1875) on ty 

 differed from the first in that, instead of keeping 

 the bacteria as a separate group, he placed them, 

 from their close relationship with the Phycochro- 

 macece, under a new group, the Schizophytes, and 

 added the genera Leptothrix, Beggiatoa, Crenothrix, 

 Sarcina, Ascococcus, Streptococcus, Myconostoc, and 

 Streptothrix. 



Nageli maintained that Bacteria were allied to 

 Yeasts, and should be included in the class of Fungi. 

 In fact, he divided the fungi producing decomposition 

 into : 



Mucorini , , _ '. -. . . . moulds 

 Saccharomycetes . . . .. yeasts 

 Schizomycetes . . . . fission-fungi 



(This last class comprising bacteria.) 



Flligge,t following Rabenhorst, maintains the 

 term Schizomycetes, and divides them as fol- 

 lows : 



* Biichner, Ueber d. exfierim. Erzeugung d. Milzbrandconta- 

 giums aus d. Heupilzen. 



t Fliigge, Fermente und Mikroparasiten. 1883. 



