GERM-CELL CYCLE IN ANIMALS 
62 
Even under the lower powers of the compound micro- 
scope the germ cells stand out with great distinct- 
could not possibly be confused with any 
ness and 
other cells 
the embryo. 
in 
Longitudinal section through an egg 
cR = chromatin remains. 
Sagittal section through embryo show- 
Fie. 20.— Miastor americana. 
with eight odgonia (0093). 
Fig. 21.— Miastor americana. 
ing odgonia (0dg3) near end of tail fold. 
