WATER EXCHANGES OP DOG 



45 



12 3 4 



Rate of Forced Water Intake 

 Fig. 25. Eate of total water output (% of Ba/hr.) correlated with simultaneous rate 

 of forced water intake (% of Bo/hr.). Water is given by stomach tube every 0.25 hour 

 for 10 periods. Times are indicated by light dash lines; heavy lines follow the mean 

 progress of any one rate of administration. The data are the same as in figures 23, 

 M representing one test additional. 



upon many loads. Hence the rate of loss seems to be linear with 

 load within the range of increments studied (fig. 26). 



More extreme positive loads of water were observed in dogs by 

 Greene and Rowntree ('27) and by Harding and Harris ('30). 

 Most of their data are incomplete for the present purpose, since 

 either loads (body weights) were not reported or rates of loss were 



+1 +2 +3 +4 +5 +6 +7 



Total Water Lood 

 Fig. 26. Eate of total water output (% of Bo/hr.) in relation to total water load 

 (% of Bo). Eepeated water intake during 2.5 hours, followed by recovery. The data 

 are those represented in figures 21 and 23. In rising loads points are knobbed to the right, 

 in f aUing loads to the left. 



