FREE AMINO ACIDS IN ANIMAL TISSUE 331 
tumor-bearing rats were normal for 5 days (Figs. 263-269), but decreases in glutamine, 
glutamic acid, alanine, glycine and serine were observed by comparison with the 
controls at 8 days (Fig. 270). No changes were found in the patterns of amino acids 
of the brains of tumor-bearing animals at any time (Figs. 272-277) nor were any 
differences found between the brains of control (Fig. 271) or tumor-bearing animals. 
255 " 256 
- a ls 
. 
- i ~ 25 
EF a acl 

258 
* 
* 
250° ; 260 
(26) wee | 262 
na 2 # te 
— 
Figs. 255-262. Fiee amino acids of kidney (75 mg) of rats bearing the Murphy lymphosarcoma 
(ascites) at different times after transplantation of the tumor. Fig. 255 was from a control animal 
and Figs. 256-262 were from animals at 6 h and 1, 2, 3, 4, 5 and 8 days, respectively, after trans- 
plantation. Glutamine, 13. 
References p. 348/349 
