SECT. 8] 



CARBOHYDRATE METABOLISM 



1037 



brains, but Mendel & Leavenworth could not find any there, thus 

 confirming Bernard, although they readily obtained it from the 



Glycogen 



O Rabbit, Lochhead.!LCramer(liver excludecl)% web wb. 

 Chick, Murray (liver included) % dry wb. I 



© Wliole Pfg , Mendel S^, Leavenworth °/o web wb. 

 © Pig muscles, Mendel <So Leavenworth 

 © Pig skelebon, Mendel <S^ Leavenworth 

 -^Man muscle, von.Wibbich /^ web wb. 

 n Cow, Collip 

 # Dog, Liesenfeld Dahmen S(^Junkersdorf 



J L 



J I I 1 I I L 



©^ f 18 19 20 21 22 23 24 25 26 27 28 29 B. 



• ^ Rabbib , 



]b 6 7 8 9 101112 13141516171819 20 H. 

 Day8->^ Chick 



,Do9 



10 20 30 40 50 60 70 80 90 100 110 120 



Monbh6->-0 



Man go Gov 



3 4 



Fig. 287. 



muscles and skeleton. It is evident from Fig. 287 that the embryonic 

 tissues show no special richness in glycogen. 



In spite of these chemical facts an enormous quantity of labour 

 has been expended by investigators who have charted out histo- 



