78 MORPHOLOGY OF THE BACTERIA. 



M. of swine plague (rouget ou mal rouge des pores) , 



Pasteur. 



Said by Pasteur to closely resemble the microbe of fowl 

 cholera, but to be smaller and less easily seen. Klein 

 ascribes this disease to a bacillus. 



M. of gonorrhoea (. ? ), Neisser. 



Found in pairs or in sarcina-like groups of four in gon- 

 orrhoeal pus, invading the pus corpuscles, and the epithelial 

 cells from the urethra. 



M. of infectious osteomyelitis (?). 



Found by Becker in pus from unopened abscesses in five 

 cases of acute osteomyelitis. Not to be distinguished by 

 its morphological characters from the micrococcus found 

 in the pus of acute abscesses generally. 



M. of progressive necrosis in mice, Koch. 



Micrococci 0.5 ^ in diameter, in chains and zoogloea, in 

 necrotic tissues of mice injected with putrid fluids. 



MONADS. 



Beside the Spherobacteria are placed the Mon- 

 ads, not the organisms described under this name 

 by the older microscopists, comprising micro- 

 phytes, spores, and infusorial animals, but the 

 Monas as understood by botanists of the present 

 day. Thus limited, the Monads include also, be- 

 sides some microphytes related to the Sphero- 

 bacteria, and differing from them by their greater 

 dimensions, some organisms of doubtful affinities. 



