GLANDS. ; 103 



described above, which unite to form a common 

 excretory duct. In the mucous glands the same 

 variety of epithelium lines the interior of the tubes of 

 their excretory ducts ; it consists of conical cells simi- 

 lar to those in the glands of Lieberkuhn, measuring 

 from -sMla. to ^oth of a line, and their nuclei 4-Joth 

 of a line in diameter (PI. XXV. fig. VIII). The 

 epithelium of the ducts of the pepsin glands is similar 

 to this, but the cells of their tubes are larger (yoo-th 

 of a line), and. they are polygonal in shape (PL 

 XXVI. fig. 1.). Sometimes they present minute pro- 

 jections of the basement membrane of the tubes, so 

 that they have a mamelonated appearance exter- 

 nally. According to Kolliker, the epithelium of 

 these compound glands is liable to fatty infiltration, 

 a phenomenon which we never observe in Lieber- 

 kulm's glands. But this is not of constant occur- 

 rence, and it is probable that the presence or absence 

 of fatty particles in the epithelium of these glands, 

 corresponds to periods of activity and rest in the 

 functions of the gastric mucous membrane. 



The glands of the mucous membrane of the uterus uterine glands. 

 have precisely the same physiognomy as the tubular 

 gastric glands. Like them, they consist of a solitary 

 tube, or of two, converging to a common excretory duct, 

 and their epithelium, of a single layer of conical cells. 

 As most of them are too long to be accommodated in 

 the thickness of the mucous membrane, we find that 

 their local extremities are somewhat curved, or bent 

 upon themselves. 



The glands of the neck of the uterus are not so 

 long as those of its body. When their orifices be- 



