878 R. R. BENSLEY. 



that (fig. 6, b) the portion of the cell engaged in secretion 

 becomes relatively greater, and at the lowest portion of the 

 neck of the resting gland two zones are no longer to be 

 recognised in the cell, the whole of which is concerned in the 

 formation of the indulinophilous secretion. These cells of the 

 lower portion of the neck of the gland are in structure exactly 

 like the cells of the mucous salivary glands in the secretion- 

 filled phase. 



Following the gland in the direction of the free surface, it 

 is found that the cells of the uppermost portion of the neck, 

 and of a varying portion of the duct or stomach pit, are also 

 engaged in tlie formation of the indulinophilous secretion, the 

 portion of the cell thus engaged becoming relatively less, and 

 the protoplasmic portion greater as one approaches the surface. 

 The cells also, as the border cells become fewer, assume the 

 cylindrical sliape and become longer. In these cells (fig. 6, e) 

 the secretion is found, for the most part, as a spherical mass in 

 the middle of the protoplasm of the cell near the nucleus. 

 There is always, however, a small amount of indulinophilous 

 substance diffused through the protoplasm intervening between 

 this and the free surface of the cell, and along the free surface. 

 Passing up the duct of the gland this mass gradually approaches 

 the free border of the cell again, and becomes less stainable 

 in indulin, thus passing by a gradual transition into the muci- 

 genous border of the surface cylindrical cells, which in the cat 

 stains but faintly in the indulin mixture. 



A further difference between the cells of the gland neck 

 and those of the free surface is that the protoplasm in the 

 latter cells is of a denser character than that in the cells of 

 the gland neck, — that is, it contains a larger proportion of 

 the fibrillar element, and a smaller amount of iuterfibrillar 

 substance. 



Thus, although the cells of the gland neck differ from those 

 of the free surface, both in general appearance and in staining 

 properties, it is impossible to discover at any point interven- 

 ing between the lowest part of the gland neck and the free 

 surface an abrupt change in the character of the cells. This 



