40 



NORMAL HISTOLOGY. 



general characters of the cells entering into the structure of the 

 tis-ue? (2) What kind of intercellular substances separates those 

 cells? (3) How arc the cells arranged with reference to each other 

 and the intercellular substances? Correct answers to these three 

 questions will enable him to quickly determine the nature of the 

 tissue he is observing, even if it should vary considerably in struct- 

 ural details from examples of the same tissue with which he has 

 already become familiar. 



