SYSTEMATIC AND DESCRIPTIVE. 239 



intravenously. Isolated from feces of infants fed 

 exclusively on mothers' milk. 



Bacterium lactis aerogenes, Escherich.- 

 Short rods with rounded ends, 1*4 2 //, long, -5 ^ 

 wide. Cultivations in gelatine resemble the bac- 

 terium of pneumonia. They produce fermentation 

 in milk and in solution of grape-sugar. Patho- 

 genic effects similar to the above. Isolated from 

 the same source. 



Panhistophyton ovatum, Lebert (Nosema 

 bombycis, Micrococcus ovatus, Corpuscles du ver a soie). 

 Shining oval cocci, 2 3 p, long, 2 p, wide, singly 

 and in pairs, or masses; * or rods, 2*5 JJL thick, and 

 twice as long.f They multiply by subdivision. 

 They were experimentally proved to be the cause 

 Q{ pdbrine,gattine, maladie des corpuscles QV Flecksucht ; 

 and were discovered in the organs of diseased silk- 

 worms, as well as in the pupae, moths, and eggs. 



Bacterium hyacinth!, Wakker. Cells resem- 

 bling Bacterium termo. Observed in the yellow 

 slime of diseased hyacinth bulbs. 



Bacterium synxanthum,Ehrenberg (Bacterium 

 xanthmum. Bacterium of yellow milk}. Cocci 'J 

 I /x in length, and rod-forms. J They produce a 

 yellow colour in boiled milk, which at first becomes 

 acid, and then strongly alkaline. They also occur 

 on boiled potatoes, carrots, etc., where they form 

 small lemon-yellow masses. The colouring matter 



* Fliigge, Fermente und Mikro-Parasiten. 1883. 

 t Zopf, Die Spaltpilze. 

 t Zopf, Die Spaltpilze. 



