MICROSCOPICAL DIAGNOSIS. 41 



delivery, their presence is of value many times in a forensic point 

 of view. When milk is added to other fluids for purpose of impo- 

 sition, it can be detected by the presence of the milk globules, and 

 by the precipitation of the casein by acetic acid. Flour, chalk, etc., 

 are easily detected when used as adulterations. 



Fungi rapidly develop in milk as soon as it commences to 

 change, and a drop is seen to contain myriads of bacteria in a few 

 hours after its removal from the living animal. The microscope 

 will show, many times, countless numbers of bacteria in the clotted 

 milk vomited by the infant. Thus the whole alimentary canal 

 might become filled with undigested milk swarming with bacteria,, 

 causing irritation, and perhaps serious illness. 



