138 LABORATORY BACTERIOLOGY 
XII 
DIAGNOSIS OF NON-SPECIFIC LESIONS 
There are many diseased conditions found in tissues, such as 
tumors, inflammatory processes and degenerations, that require 
for an accurate diagnosis a careful histological examination. 
In sending tissues for this purpose the part to be examined 
can be put immediately in 10% formalin or in alcohol. Usually, 
however, it is better to send the lesion in a fresh condition so 
that the examiner can select the portions to be sectioned in 
order to ascertain the true nature of the morbid process. 
