No. 1.] ORIGIN OF HUMAN MONSTERS. 351 
Fic. 367b.—Section of a portion of a villus as indicated by the adjoined 
outline, V. X 250 times. E&, epithelial covering; M, mesoderm; S, 
space within formed by a destruction of tissues. 
Fic. 367¢c—Outline of a villus showing the portion from which Fig. 367b 
was drawn. 
