112 



PHYSIOLOGICAL KEGULATIONS 



-30 



-20 



+10 



+20 



-10 



Total Water Load 

 Fig. 66. Bates of water exchange (% of BoAour) in relation to initial water load 

 (% of Bo) (Equilibration diagram). Frog. Eates are all computed from the first 

 0.5-hour of recovery, each point representing the mean of 10 measurements on as many 

 individuals. The square represents 10 individuals that did not survive the recovery. 

 Eedrawn from Adolph (39b). 



In order to yield average data, tests are grouped in tens in the 

 order of the increments of water initially contained in the bodies. 

 The subsequent exchange is then (fig. 65) such that in every case 

 the net weight of the frog tends toward the weight that prevailed 

 before water was subtracted or added. But the gross weight (urine 



■30 



+10 +ao 



-20 -10 



Total Water Load 



Fig. 67. Net exchange of water (% of Bo) in relation to mean water load. The 

 exchange is that which occurred withiu the time indicated in hours of recovery. 

 Each point represents 10 frogs, the same as in figure 65. Further data of Adolph ( '39b). 



