THE MICROSCOPE IN VETERINARY MEDICINE. 75 
tubercle from the lungs of a cow were similarly arranged for 
tlie purpose of comparison. In the course of a few days 
numerous infusoria were seen moving very actively among 
the particles of organic matter. The bacteria and vibriones 
in the variolous lymph also increased in size_, and new ones 
w'ere developed; these small organisms also grew in the milk 
and tuberculous matter^ but neither specimen presented any 
signs of fungi. Repeated examination of the objects during 
the next two months showed a gradual decrease, and finally 
extermination of the bacteria and vibriones, with multipli¬ 
cation and growth of infusoria, which ultimately consumed 
the organic matter, and soon afterwards perceptibly dimi¬ 
nished in numbers ; before this occurred, however, about the 
end of the second month, numerous minute filaments 
(mycelium) of fungi were observed to spring from the edges 
of the objects, and traverse the whole field of view; each 
specimen was carefully noticed, and in each the same appear¬ 
ances were perceived. Week by week the development of the 
riG. 10. 
Mvcclium spores and spore oases of fungus developed on a portion of ovine 
variolous matter. 
