CHAP. XLIV.] FOLLICLES OF MAMMARY GLANDS. 



627 



the cells become larger and fig. 295. 



much more numerous. They 

 contain a great number of 

 small oil-globules, which 

 constitute, when set free, 

 the oil-globules of the milk. 

 In colostrum there are nu- 

 merous cells of this kind, 

 filled with oil-globules. 

 These have been termed 

 colostrum corpuscles, and 

 were first described by 

 Donne. The ducts are lined 

 with columnar epithelium. 



The walls of ducts of mo- 

 derate size are composed of 

 fibrous tissue, in which a 

 great number of elongated, 



TO-QITTT on/1 TIOO-^ITT TAovollol One oi the smallest lobules of a lacteal gland, with ducts, 

 Wavy, and nearly parallel from a puerperal woman; magnified 70 diameters. After 



fibres of yellow elastic tissue Langer< 

 are seen. 



Fig. 296. 



Terminal follicles of the lacteal gland, with ducts, from a woman who was not preg- 

 nant. The fibres of yellow elastic tissue are numerous upon the wall of the duct. 

 The terminal follicles are separated from each other by a considerable quantity of 

 areolar tissue. Magnified about 150 diameters. 



