46 THE EPITHELIAL TISSUES 



invaginatino; from an epithelial membrane, but the end-pieces 

 become separated by the loss of the connecting duct system. As a 

 result, the mature gland is composed of separate small spherical 

 vesicles of varying size with their walls composed of a single la>er 

 of cuboidal epithelium. The other endocrine glands are best studied 

 in the chapters dealing with them. 



REFERENCES. 



BowEN, R. H. 1929. The cytology of glandular secretion, Quart. Rev. Biol, 



4, 299. 

 Bralter, a. 1926. The regeneration of transitional epithelium, Anat. Rec, 



33, 137. 

 Chambers, R., and Renyi, G. S. 1925. The structure of the cells in tissues 



as revealed by microdissection: I. The physical relationships of cells in 



epithelia. Am. Jour. Anat., 35, 385. 

 Florey, H., Carleton, H. M., and Wells, A. G. 1932. Study of alterations 



in epithelia, Brit. Jour. Exp. Pathol., 13, 269. 

 Gaebler, O. H. 1921. Bladder epithehum in contraction and distention, 



Anat. Rec, 20, 129. 

 Thuringer, J. M. 1924 1928. Mitotic activity in stratified epithelium, 



Anat. Rec, 28, 31; 40, 1. 



See Appendix for general text references. 



