382 G. ROUSER et al. 
103 | F 104 

Spey Pe cee 
Figs. 103 and 104. Compare the free amino acid pools of human normal and leukemic neutrophilic 
polymorphonucle ar leukocytes (extracts from too mg). The arrow to the left in each figure is to 
glutamine (low in leukemic cells); middle ar1ow to glutamic acid (higher in leukemic cells) ; and 
arrow to the right to aspartic acid (also higher in leukemic cells). 
Figs. 105-108. Illustrate the findings with normal urine samples (extracts of 0.5 ml of urine in 
each case). Figs. 105-107 from the same individual on 3 consecutive days (urine volumes 1230, 
855, and 740 ml). Note steady fall in level of 1-methylhistidine and the general uniformity of 
the chromatographic results. For abbreviations see p. 369. 
