122 



MAY M. JARVIS. 



can be given. Their characters were taken as criteria in study- 

 ing the germ-cells occurring elsewhere. 



Similar cells are observed in various regions of the embryo. 

 The above table shows their distribution in series 12 and 26 

 and one row of sections of series 27, an embryo with three vis- 



Cerm.n. 



^^^''^-.AJ''^- 



Fig. 



Fig. 2. 



Gerw 

 Mes.n. Cell 



Fig. 4. 



ceral clefts, only the row of sections cutting the volk-stalk beine 

 studied. 



The germ-cells in the intestinal wall (see Fig. 2), are near the 

 region of the yolk-stalk, a point to be noticed in considering the 

 probable path of migration. 



The germ-cells in No. 26 near the central nervous system are 

 interesting, from their location in the anterior portion of the 



