THE PyEDOGENETIC FLY, MIASTOR 61 



large and are characterized by the possession of a 

 number of spherical chromatin granules which 

 are evenly scattered about in the nuclear sap. 



FIG. 18. Miastor americana. Longitudinal section through an egg 

 with two oogonia (oogi). b c = blastoderm nucleus; cR = chro- 

 matin remains. 



FIG. 19. Miastor americana. Longitudinal section through an egg 

 with four oogonia (o8g%). 



