152 GERM-CELL CYCLE IN ANIMALS 



Silvestri. Silvestri claims that this " nucleolo" is a 

 plasmosome which was cast out of the oocyte nucleus 

 at an early stage in the growth period, but an exami- 

 nation of my material proves that it really contains 

 all of the chromatin of the oocyte nucleus. Since it is 



Fig. 47. — Copidosoma gelechice. Stages in fusion of two contiguous 

 oocytes end to end. fe = epithelium ; k = keimbahn-chromatin ; 

 n = nucleus ; s = spindle breaking down ; u = point of union of 

 oocytes. 



not a nucleolus, at least in the species I have studied, 

 it can no longer be called a ** nucleolo" and therefore 

 the term ' keimbahn-chromatin ' will be applied to 

 it. 



Figure 46, A was drawn from a longitudinal section 

 through an oocyte (o) in an early stage of growth. It 

 is surrounded by follicle cells (fe) and accompanied by 



