550 FOOT AND STROBELL. 



This photo was taken to show the osmophile granules in eggs at this stage, 

 and all other constituents of the cell were sacrificed to the demonstration of these 

 granules. Fixative, 5% osmic with acetic acid. 



Photo 62, section (3;u) of a fertilized oocyte, second order, at the same stage 

 of development as that shown in Photo 55. The rod sperm and its sphere could 

 be seen in this section, but they are scarcely indicated in the photo. These had 

 to be sacrificed in order to bring out the osmophile granules. Fixative, chromo- 

 acetic, followed by osmic acid. Preparation unstained and mounted in glycerine. 

 X 500. 



