260 



Kojima 



, l.-Section of normal pancreas of rat (male), rusk-fed. Microphotograph ; magnifiecJ 

 Qn rlimiplers H;ematoxvlin preparation. i- i i. • ^i 



The alve'oli show a thick inner or zymogen zone, w luch appears light in the 

 preparation, and a very thin outer zone, ^vith nuclei lying between them. A sectioa 

 of an islet is seen in the middle of the photograph. 



Fig '^ -Part of a similar section ; magnified 400 diameters. Haematoxylin preparation 

 ■ ■ This exhibits the alveolar cells and their nuclei better than fig. 1 ; it shows the 

 thinness of the outer zone and the large amount of zymogen in the inner zone ot 

 the alveolar cells. 



