114 THE DUCTLESS GLANDS 



The modification " chromaphil " will be used throughout. 1 



5. Accessory Adrenals. 



Many important points in the comparative anatomy of the 

 adrenals may be conveniently dealt with under this heading. 



co. -blcLc. .rne 



FIG. 28. Section of the adrenal of Meleagri* Gallopavo. The material was 

 fixed in Miiller's fluid with acetic acid and stained with haematoxylin. 

 A strand of medullary cells is seen running between the cortical columns. 



al. w., walls of " alveoli " ; bld.c., blood corpuscles ; co., cortex ; e.c., elongated 

 cells ; n., nuclei ; me., medulla. 



The arrangement of the inter-renal and the " paired sup- 

 rarenals " of Elasmobranchs at once suggests the possibility 

 of outstanding portions of both " cortical " and " medullary " 

 constituents being found in the higher as well as in the lower 



1 Kohn, who repeated Stilling's observations, used the term " ohromaffin," 

 and called the bodies " paraganglia." More recently Poll has invented still 

 another term, " phaeochroim . lhTe seems to be no need for either of these, 





