248 MALL. [Vor. XIX. 
Wn alin ee 
ne, 
Fic. 250c—Section of chorion, villi and decidua. There is a large 
quantity of mucoid mass between the villi. > 17 diameters. 
Fic. 250d.—Section through hind-brain, M, adjacent mesenchyme and 
epithelial lining of pharynx P, to show cytolysis and dissociation 
of the tissues. XX 250 times. 
