Fig. 44 

 Cat morula. X 700. (Zenker formol with acetic acid; Masson 

 trichromc.) (E. C. Amoroso.) 



Fig. 45 

 Cat morula. X 700. (Bouin; Weigert H andE.) 

 (E. C. Amoroso.) 



Facing page 80 



