222 
ON THE STOMACH GLANDS OF THE RAT AND RAliUIT 
n) The character itics of the rabbit's stomach are as follows : 
1. ) The surface of the rabbit's stomach may be divided into two parts: 
the fundus inland region which occupies two-thirds of the whole and 
the pylorus gland region which occupies the remainder. 
2. ) The stomach glands of the rabbit like those of the rat may be divided 
into three kinds : the cardiac glands which can always be found in 
a small number in the junction of the oesophagus and stomach, the 
Fundus glands and the pylorus glands. 
3. ) The stomach glands of rat and rabbit have the same histological 
structure, only the number of the glands and the size of the cells is 
different. 
4. ) The arrangement of the stomach glands and their histological struc- 
tiu^e are the same. 
As written above, I have, in the rat and rabbit, found three kinds of glands 
in the stomach, but from the histological structure of the cells of each gland 
five kinds may be distinguished : 
1 . ) Parietal cells. 
2. ) Chief cells of fundus gland. 
3. ) Chief cells of ;)ylorus gland. 
4. ) Superficial epithel cells of fundus and pylorus glands. 
5. ) Cardiac gland cells. 
In these five different kinds of cells, the second and third are very similar, 
but in the rabbit's stomach I have found the slight difference, that the chief 
cells of the pylorus gland are more columnar and compact than those of the 
fundus gland, that the nucleus in the former always lies in the basal part of 
the cell but in the latter it lies comparatively in the middle part of the cell. 
Between the fourth and the fiftli kind the histological difference is very 
slight, particularly when the cardiac glands are very few as in the rabbit, 
they are then almost the same as the superficial epithelium cells of the 
stomach. 
