68 



Scientific Proceedings (104). 



total amount in the body had been removed before the final 

 sample was taken. Although there were individual instances in 

 which the blood sugar rose slightly above its initial value, it was 

 usually found to progressively decrease. A slight but unmistak- 

 able decrease in the oxygen content and capacity of the blood 

 was found following hemorrhage of this extent. Compare columns 

 II and III, VI and VII, X and XI of Table I. 



TABLE I. 



Dog. 



Date. 



0 Blood 

 Drawn 

 Previous 

 to Final 

 Sample. 



Sug 



ar in 



100 



Mg. per 

 cc. 



O2 Capacity in cc. 

 per 100 cc. 



O2 Content in cc. 

 per 100 cc. 



VIII-XII. 



8 



X 



m 



Initial. 



Final. 



Average for 

 Series. 



Dev. from 

 Mean. 



Initial. 



Final. 



Average for 

 Series. 



Dev. from 

 Mean. 



Initial. 



Final. 



Average for 

 Series. 



1 Dev. from 

 1 Mean. 









> 



> 



> 



VII. 



1 



VIII. 





>< 





IIX 



XIII. 



> 



> 



X 



A . 



II- 6 



11.6 



7 6 



77 



75 



5 



23.1 



22.2 



23.0 



0.8 



15.6 



14.7 



15.2 



0.5 



7-8 



66.1 





I- 6 



8-3 



78 



68 



73 



5 



28.7 



26.9 



26.3 



2-5 



21.7 



18.5 



19.O 



2-7 



7-3 



71.6 



B . 



IO-30 



16.6 



95 



83 



81 



14 



17.7 



I6.I 



17. 1 



1.0 



9-3 



8.2 



9-3 



I.I 



7.8 



54-2 



C . 



IO-31 



8.6 



63 



76 



67 



14 



19.9 



15-5 



17.9 



2.4 



13.5 



7-4 



10.3 



3-2 



7.6 



56.9 





II- 7 



10. 1 



72 



69 



65 



11 



20.6 



16.5 



18.1 



2.5 



9.8 



10.2 



10. 0 



1.6 



8.1 



55-2 



D . 



II-II 



10.8 



59 



54 



55 



4 



16.4 



16.6 



16.5 



0.3 



9-7 



8.7 



8.4 



1-3 



8.1 



5i-0 



E . 



11-20 



14.0 



62 



51 



59 



7 



22.1 



19.7 



21.4 



i-7 



13-3 



9.6 



11.6 



2.0 



9.8 



54-2 





I-I6 



8.9 



63 



66 



63 



6 



23.6 



21.0 



22.2 



1.4 



16.4 



9.8 



12.2 



4.2 



10. 0 



54-9 



F. . 



I2-I8 



9.8 



72 



69 



71 



2 



24.5 



23.2 



23.4 



1.1 



16.6 



14.O 



14.5 



2.1 



8.9 161.9 



G . 



12-19 



6.9 



83 



71 



77 



6 



25-0 



20.6 



22.8 



2.2 



15.4 



14.4 



14.9 



0.5 



7-9 65.4 



H . 



I-I5 



7-5 



74 



7i 



74 



3 



27.6 



26.6 



27.2 



0.6 



22.0 



19.0 



19.0 



3-2 



8.2 69.9 



Although the actual amounts of the blood sugar, oxygen 

 content and capacity may vary somewhat when studied at dif- 

 ferent times in one individual, the average level assumed by each 

 of these factors seems to be characteristic for the individual. See 

 dogs A, C, and E, Table I. On the other hand, when the level 

 of any one factor is compared in different individuals, wide varia- 

 tions are frequently found. Compare the sugars of dogs A and E, 

 or the oxygen contents and capacities of A and C. Again vari- 

 ability of blood sugar seems to be characteristic of some indi- 

 viduals while constancy characterizes it in others. Because of 

 this occasional variability, conclusions in the present paper are 

 drawn only from averages of several determinations. The 

 difference between the oxygen capacity and the oxygen content of 

 the blood remains singularly constant from individual to indi- 

 vidual under the conditions of our experiments. See column 

 XIV, Table I. 



