380 R. U. BENSLEY. 



actions are found in cells which are strictly comparable mor- 

 phologically. For example, the mucous border of the surface 

 epithelium of the stomach of the rabbit stains in iudulin almost 

 as readily as the neck cells of the gland of the cat, and in the 

 intermediary zone of the rabbit's stomach there are peculiar 

 transparent glands, the cells of which have all the features of 

 a mucous cell, but which stain differently from the cells of 

 the neck of the fundus gland, from the pyloric gland cells, and 

 from the surface epithelium. The only fluid which stains the 

 secretion of these cells is the muchsematein solution of Mayer, 

 in which it becomes intensely blue. 



The indulinophilous mucus-secreting cells do not cease 

 abruptly at the lower end of the gland neck, but a few may 

 be found among the ferment-secreting cells of the upper por- 

 tion of the body of the gland, as indicated in fig. 6, d, and 

 rarely one finds them even in the lowest parts of the gland. 

 Tliese cells in hsematoxylin and eosin stained sections stain 

 red, contrasting strongly with the more blue stained ferment- 

 forming cells. It seems to me very probable that these are 

 the cells observed by Pilliet,^ Triukler,^ and others, and re- 

 garded as stajjes in the transformation of chief cells into 

 border cells, or vice versa. 



The cells of the neck of the gland exhibit the usual secre- 

 tion changes. In the first hours of digestion very little change 

 is to be noticed; but after twelve hours of secretion, and more 

 particularly when the stomach is mechanically stimulated by 

 sponge feeding, the secretion is seen to have been largely 

 passed out into the lumen of the gland, where it stains readily 

 with iudulin and muchsematein, and exhibits tlie stringy or 

 spongy texture usually presented by mucus outside the cell. 

 At the same time the cell becomes reduced in size, and contains 

 relatively more protoplasm. Secretion changes may also be 

 observed in the cells of the bottom of the gland duct, the 

 rounded mass of mucus moving forward to- the free surface 

 of the cell, where it is partly discharged. 



1 'Journal de I'Aiiaf..,' &c., 1887. 

 ^ ' Arch. f. mik. Aiiat.,' Bd. xxiv. 



