126 F. H. STEWART. 



The first part of the ovarian region {or. r.) — that is, that 

 part which is not ovarian ca3cum — has the form of an 

 elongated cone, the base being continuous with the ovarian 

 cascum. It measures 1'87 mm. in length. It is completely 

 filled by the ovary and by tlie mass of developing ova. 



The ovarian csecum, or second part of the ovarian region, 

 is a blind prolongation of the first part. The openings into 

 it of the first part and of the uterus lie side by side. It is 

 oval in shape, with a truncated end at its junction with the 

 first part and the uterus. It measures '85 mm. in length, 

 •221 mm. in breadth. 



The ovarian ctBCura is the original gonad cavity, as will be 

 shown when describing the immature female organs. The 

 first part is a secondary outgrowth from it. 



The wall of the ovarian region (PI. 8, figs. 19 and 20) is 

 formed of excessively fine flat epithelium. Indeed, so fine 

 is this epithelium, that except near the termination of the 

 organ, the only evidence of its existence consists in the pre- 

 sence of very much flattened nuclei {oigtc.) closely apposed to 

 the sides of the ovary and of the column of ova. The pro- 

 toplasm of this epithelium cannot be distinguished even with 

 a magnification of 1000 diameters. The state of matters in 

 the immature female which I shall describe later, and the fact 

 that this layer of flattened nuclei can be traced into the 

 epithelium lining the ovarian csecum, leave no doubt, however, 

 as to the real existence of a wall. 



The wall of the ovarian caBcum (PI. 8, fig. 18, giv.) is com- 

 posed of flattened epithelium, in which no cell outlines are 

 discernible. The nuclei are flattened oval. The transition from 

 the first part to the ccecum is, of course, gi'adual, not abrupt. 



The germinal syncytium (PI. 8, fig. 20, gs.) occupies the 

 fundus of the tube, and doubtless springs from the epithelial 

 lining. It consists of a protoplasmic mass, which shows an 

 affinity for basic stains. Nuclei are imbedded irregularly in it, at 

 the commencement 4 to 8 in a transverse section, increasing 

 up to 12, and then again decreasing until at the end of the 

 syncytium not more than two occur in any section. The 



