202 MICKOBES, FEBMENTS, AND MOULDS. 



envelope (periplasma) then encloses the oogonium, 

 which thus becomes an oosphere. Close to this, on 

 the original filament, a small swelling appears, which 

 Ferran regards as the pollinidium, or antheridium, 

 which is intended to fertilize the oosphere and trans- 

 form it into an oospore. 



When the rupture of the oospore occurs, the 

 granules contained in it float in the liquid. Those 

 which have been fertilized grow until they are as 

 large as the original oogonium, and constitute mul- 

 berry-shaped bodies, so called on account of the 

 numerous round projections or micrococci which 

 cause the surface to resemble that fruit. 



A very slender filament may soon be seen to issue 

 from one of the points of this mulberry-shaped body, 

 a filament which grows longer, and sometimes two 

 of them appear at once. These filaments become 

 sinuous, twist in spirals, form spirilla, and are then 

 segmented so as to form by fission Koch's comma 

 bacilli, which are the starting-point of the culture, 

 and of this cycle of evolution (Figs. 88, 89, 90). 



Hence it would appear that the cholera microbe 

 must belong to a much higher group than that of 

 bacteria, to which it has been hitherto assigned. 

 This mode of reproduction would show that it is not 

 an alga, but a fungus of the group of Peronosporece, 

 and it is, in fact, termed by Ferran P. Barcinonce 

 while his friends prefer to call it P. Ferrani, after its 

 discoverer. 



