SECT, 6] 



OF THE EMBRYO 



an absorption of water by the yolk in that case also. Agassiz also noted 

 a liquefaction of the albumen in the fowl's egg immediately over the 

 germinal disc, corresponding to the liquefaction underneath it. 



65 



Rabbit, 

 Guinea-pig 

 &Mouse 



® ManfMichel) 



© » (Fehling) 



e " (Klose) 



® " (Camerer&,Sbldner) 



O " (Brubacher) 



A Guinea-plg(lnaba) 



B Rabbi b (Fehling) 



□ ^5 (inaba) 



(a Mouse (Inaba) 



•>■) (Von Bejold) 



© Dog (Liesenfeld, Dahmen 



S^Junkersdorf) 

 e Cow lung ( Schlossberger) 

 (D " Muscles( •>■> ) 



B Man (Schmlbs) 



■ Cow ( Mouiton, Trowbridge &, Halgh^ 

 H Pig ( ■>■> •>■> 



O Rabbit ( Schkarin) 

 <^ Man TRubner) 

 □ '5 (Gerhardtj) 

 • Rabbit (Friedenthal) 

 © Pig brain (Mendel &, Leavenworth) 

 © » liver ( » n ) 



® Cow suprarenal (Fenger) 



Pig& 

 Dog 



100 

 Fig. 228. 



6-5. Water-content and Growth-rate 



In birds, then, the general rule seems to be that the water-content 

 of the embryos is higher the younger they are. In many other cases, 

 the same relationship appears. Especially in the case of mammalian 

 embryos is this true; thus Fig. 228, where a good deal of the data is 

 collected, shows a continual fall for man (Fehling; Michel; and 



