562 F. A. E. CREW AND HONOR B. FELL 



is somowbat larger than either of those described above. 

 The section was stained with Mallory's stain. The body is 

 ovoid in shape and does not display the usual concentric 

 structure. The main feature is the presence of two broad 

 superimposed rings of small granules which stain a purplish 

 blue, those of the lower ring having a more reddish tinge than 

 those of the superficial circle The general coloration of the 

 body is difhcult to describe accurately and a coloured drawing 

 has therefore been made (PI. 18, tig. 6). It will be seen that 

 the centre has an orange tint whereas the perii)liery is bluish. 

 The investing cells are extremely degenerat<\ As seen in 

 section they are reduced in places to a narrow band. The nuclei 

 are almost indistinguishable. A single protoplasmic strand 

 connects the investing cells with the epithelium of the tubule. 

 The epithelial cells are reduced to a single degenerate layer 

 adhering to the basement membrane. A comparatively large 

 clear space intervenes between the wall of the tubule and the 

 tissue surrounding the central body. 



The distinctly female appearance of the external genitalia 

 led us to think that possibly ovarian tissue would be found in 

 the gonads. On first examining our preparations it seemed 

 to us that such was the case. The spherical structures, two of 

 which have just been described, had much the appearance of 

 degenerate ova in typical, if degenerate, Graafian follicles. 

 We regarded the pale somewhat granular central area so 

 commonly present as the nucleus, the dark line bounding the 

 body as a zona pellucida, and the investing cells as the corona 

 r a d i a t a . The intervening spaces between the investing cells 

 and the epithelium lining the tubule could be interpreted as 

 cavities for the liquor folliculi. and the epithelium 

 adhering to the basement membrane would, of course, corre- 

 spond with the epithelium of the Graafian follicle. More exten- 

 sive examination, however, revealed the presence of obviously 

 homologous bodies with the concentric structures so marked 

 as to remind the observer of a starch granule. These obviously 

 were not of ovarian nature, as was also shown by the fact that 

 in some instances two or more occm-red in the same tubule. 



