452 BENJAMIN H. PRATT AND J. A. LONG 



tene stage, and the granule above referred to as the centriole 

 here becomes more constantly apparent (fig. 15). At this 

 period, in ovaries fixed in Flemming's solution, this internal 

 granule seems to be surrounded by a narrow zone of less dense 

 material. During the diplotene stage the centrosome can still 





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Text fig. 1 One of the largest cells from the ovary of a rat three days old. 

 Fixed in Flemming's fluid and stained in iron haematoxylin. X 1830. 



Text fig. 2 One of the largest cells from the ovary of a rat nine days old. 

 Fixed in Zenker's fluid and stained with iron haematoxylin and erythrosin. 

 X 1830. 



