546 FOOT AND STROBELL. 



in the preparation, i.e., osmophile substance. This channel can be traced to a large 

 degenerating oocyte, which is composed almost entirely of osmophile substance. 

 A small portion of such an egg is seen in Photo 50, and on its right, degenerating 

 cells, showing like masses of osmophile substance. Fixative, Hermann's fluid. 



Photo 47, section (z\ii) of a capillary space between two eggs, showing osmo- 

 phile granules in the fluid substance of these spaces. The black masses cannot 

 be interpreted as blood, for in no case has the blood (in either the large or small 

 vessels) blackened with osmic. These capillary spaces can be traced to larger ones, 

 and these in turn to degenerating eggs {cf. Photo 46). Fixative, Rabl's picro- 

 sublimate, followed by osmic acid. 



Photo 48, section {i^ii) of a portion of the periphery of a large oocyte at the 

 distal end of the ovary. This part of the egg is in contact only with the epithelial 

 covering of the ovary. The osmophile substance appears to be in a capillary 

 space within this covering. This same condition is seen in Photo 44. Fixative, 

 picro-nitric, followed by osmic acid. 



Photo 49, section (2iytx) of one of the tiny cells which surround the large 

 oocytes at the distal end of the ovary. It contains two relatively large osmophile 

 granules, and there is a third in the small cell to the right. These cells contain 

 osmophile granules and also masses of a more deeply stained substance which 

 closely resembles the archoplasm of the oocytes. Three such masses are present 

 in this section. Fixative, acetic alcohol, followed by osmic acid. 



Photo 50, section (2|-/n) of three small degenerating cells and a part of a degen- 

 erating egg to the left. Fixative, 10% formalin, followed by osmic acid. 



