f>7 The Interstitial Cells of the Ovary in the Rabbit. 



FIG. 5. Ovary of rabbit about 22nd day of pregnancy. Taken from the cortical 

 region. Fixed in sublimate solution : 



a = germinal epithelium. 



6 = primordial ovum. 



c = multi-nucleated interstitial cell. 



d interstitial cell, becoming isolated. 



/ connective tissue. 



g = modified germinal cells. 



FIG. 6. 1 6 are taken from the ovaries of rabbits in the later stages of pregnancy 

 la Q a from ovaries of young rabbits : showing ovogenetic changes for comparison with 

 1 6. Fixed in Gilson's fluid : 



1 = transition from interstitial to leptotenic phase in pregnant ovary, 

 la = young 



2 = Leptotenic phase in pregnant ovary. 

 2a= young 



3 Synaptenic phase in pregnant ovary. 

 3= young 



4 = Pachytenic phase in pregnant ovary. 

 4a= young 



5 = Diplotenic phase in pregnant ovary. 

 5a= young 



6 = Dictyate phase in pregnant ovary. 

 6a= young 



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