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HENRY H. DONALDSON 



TABLE 2 



The mean values of the percentage of water in the brain and spinal cord of the albino 



rat. Both sexes arranged according to age, increasing by 10 day increments. 2 



2 Note that the values here given begin with 0-10 days, i..e, a mean age of five 

 days after birth. Hence the initial percentages are less than those in table 1 which 

 gives the values at 5 grams, approximately the weight at birth. 



