KATE OB PEN^ETRATIOI^ OF IONS INTO EEYXnilOCVTES 



513 



the permeability of the corpuscles of the dog to sodium, found that, 

 in the course of a few hours, an appreciable part of the corpuscle sodium 

 is replaced by plasma sodium. Similar values to those found by W. E. 

 and E. T. Cohn (1939) for the penetration of sodium into the corpuscles 



Table 15. — Distribution of -'•Na between Corpuscles and 

 Pla.sma of Dog Blood Shaken With Labelled Sodium 



Chloride at 37° 



Table 16. — Distribution of ^^Na Administered 



BY Subcutaneous Injection Between 



Corpuscles and Pla.sma of the Cat 



Time in hours 



Percentage distribution 



ratio of ''ISTa between 



corpuscles and plasma of 



equal weight 



Cat A 



Cat B 



9.8 

 10.4 

 19.2 

 10.2 

 18.6 

 28.4 

 32.9 

 36.4 



of the dog were obtained in our experiments, the results of which are 

 given in Table 15 and Fig. 1. The rate of penetration of sodium into 

 the corpuscles is lower than the rate of penetration of phosphate. While 

 after the lapse of 1 hour, thus, in experiments of comparatively short 

 duration at 37° the distribution ratio of ^^P between corpuscles and 

 plasma is formed to be 0.6, the corresponding figure for ^^Na is about 0.18. 



33 Heresy 



