118 



THE DUCTLESS GLANDS 



in front of the aorta and extending from the region of the 

 adrenals in front to the bifurcation of the aorta behind. Other 

 elongated, oval, or rounded patches or specks of chromaphil 

 tissue are also visible in different regions. 1 



Figs. 30, 31 and 32 will give an idea of the arrangement of 

 the abdominal chromaphil body and other smaller chromaphil 

 corpuscles in the dog, the cat, and the rabbit respectively. 



Numerous irregularly disposed smaller masses of chromaphil 

 tissue are found in different regions more or less closely related 

 to the principal chromaphil body [see Figs. 30, 31, and 32 (c) ] 



o 



& 



\ 



l C 



Fig. 31. Chromaphil bodies of 



adult cat. 

 Lettering same as for Fig. 30. 



Fig. 32. Abdominal chromaphil 

 bodies of a rabbit. 



Lettering same as for Fig. 30. The 

 principal body is bifurcated an- 

 teriorly and posteriorly. 



In the cat (Fig. 31) the chromaphil body tends to consist of 

 long threads of tissue. These threads are stretched along the 

 sympathetic, and the relationship to the nervous system is 

 more obvious than either in the dog or the rabbit. 



In the rabbit (Fig. 32) there is a distinct tendency for the 

 principal chromaphil body to be paired, or it may be bifurcated 

 anteriorly and posteriorly [Fig. 32 (C)]. The threads of 



1 1 am indebted to the late Dr. Stilling and to Dr. Kohn for their kindness 

 in giving me detailed instructions as to how to find these bodies, and to Dr. 

 Kohn for some specimens which he generously sent me. 



