CHANGES IN THE GLAND-CELLS. 



137 



and those next the wall of the acinus (demi-lune cells) is made 

 out with great difficulty, because all the cells stain evenly with 



itions of Orbital Gland of the Dog. (Heidenhain.) (A) After pro- 

 longed period of rest. (B) After a period of activity. In (A) the secreting 

 cells are clear, being swollen up with raucigen, and the half-moon cells are 

 very distinct and darkly stained. In (B) the accumulated material has been 

 discharged from the cells, and the alveoli are shrunken. 



carmine, and have no special characters except those belonging to 



active protoplasm. 



12 



