1119 
Anatomy. — “The vagus area in camelidae”. By Dr. H. A. VerMEcien. 
(Communicated by Prof. L. Bork). 
(Communicated in the meeting of December 30, 1914), 
In a previous paper’) | demonstrated the relation between the 
development of the dorsal motor vagus nucleus of some domestic 
animals with the size and structure of the stomach, as well as with 
the development of the stomach musculature. In that article I pointed 
out that the shape of its cell-column differs among our ruminating 
domestic animals; in the ox, for instance, it reaches its full size 
midway in its length, whereas in the goat not until past the frontal 
third part, which circumstance | connected with the fact that the 
omasus, a strongly developed and highly muscular division of the 
stomach in the ox, is very poorly developed in the goat. Later 1 
examined the dorsal motor vagus-nucleus of the sheep, which animal 
has also a small omasus, and found similar proportions as in the 
goat as regards its form and size. [In one respect only did the two 
cell-columns differ, viz. in the goat, */, of the nucleus lie spinally 
and */, of it frontally of the calamus; in the sheep the reverse is 
found; here, as in the horse and ox, */, of the nucleus lie in the 
closed, and */, of it in the open portion of the oblongata. (Series of 
921 sections, of which 135 spinal and 186 frontal of the calamus, 
fig. 1). 
Calamus Calamus 
| | 
| | 
frontal CO caudal frontal za caudal 
; | 
1 i 
Ovis aries Capra hircus 
Calamus Calamus 
frontal Ce caudal frontal = caudal 
MR commissure nucleus 
‘ 
Auchenia lama Camelus bactrianus 
Fig. 1. Dorsal motor vagus nucleus. 
1) The size of the dorsal motor vagus-nucleus and its relation to the development 
of the stomach. These Proceedings Vol. XVI p. 305. 
