40 



ANATOMY 



The Albinos were from The Wistar Institute stock strain, 

 grown on the scrap diet and examined before the day's feeding. 

 The rat was chloroformed, but before the heart ceased beating 

 it was exposed in situ, the tip clipped away and the blood from 

 it caught in a small glass weighing bottle. The fresh weight 

 was immediately taken and after drying at 95C. for a week 

 the weight of the residue was obtained. 



The results are given in table 18. 



TABLE 18 

 Percentage of water in the blood of the Albino, Hatai (MS. '15) 



In 50 rats (27 males -f 23 females) between the weights of 50 

 and 150 grams the average number of erythrocytes was found 

 by Chisolm ('11) to be 8.8 millions and the average hemoglobin 

 content 87.8 per cent as measured on the human scale. 



TABLE 19 



Rivas (University of Pennsylvania MS. '14). Observations on the Albino rat 



blood normal. 



