THE AMPHIBIAN GERMINAL VESICLE 



175 



GERMINAL VESICAL 



OVARIAN EGG 

 OF 

 ANURAN 



S^' 



*^A* : 





: » • 'V'^'''? -'^Jfe- '^r* • ..v^^i 



I 





X 



CHROMOSOME CORE 

 IN CENTER: SACS 



ON SURFACE^ COLLOID 

 GROUND SUBSTANCE 





•A„ 



^T: GERMINAL VESICLE v . j^-' • 

 STUDIES *^ ' 



(COURTESY OR. W.R. DURYEE) . v^>: '^L*.^^^^' 



1^. • . ' '^ 



*<•- 



SIDE VIEW VESICLE SACS 8 MEMBRANE 



SURFACE VIEW OF VESICLE SACS 

 If 



TEMPORARIA CHROMOSOME IN 1 % NACL 



R PIPIENS CHROMOSOMES IN 

 GERMINAL VESICLE 



*%:;,fjil OUTWARD FLOW OF SHRINKAGE {70%) 



"iv^S-^—^ COLLOID UPON TEARING DURING FIXATION OF 



■ '■".■" NUCLEAR MEMBRANE : OF T PYRRHOCASTER 



GERMINAL VESIClE 



NUCLEAR SUBSTANCE A GEL. 



