THE PHDOGENETIC 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. 
Fia. 18.— Miastor americana. Longitudinal section through an egg 
with two odgonia (0691). bc=blastoderm nucleus; ¢R = chro- 
matin remains. 
Fig. 19.— Miastor americana. Longitudinal section through an egg 
with four odgonia (0692). 
