52 



PHYSIOLOGICAL EEGULATIOlSrS 



Sensible Water Load 

 Fig. 31. Eate of urinary water loss (% of Bo/hour) in relation to sensible water 

 load ( % of Bo) . A, water administered by rectum ; B, C, and D, water administered by 

 vein; E, maximal rate in the third hour after giving water by stomach to the same 3 

 individuals. Each load is the mean during 1.0 hour. Same data as in figure 30, of 

 Falck (1872, 1873). 



b. Various routes of administering water have been studied. 

 Falck (1872) gave 9% of Bo of water by vein (figs. 30 and 31) with 

 results far different from those when the same individuals received 



0.1 2 



hours 

 Fig. 32. Course of sensible water load after single equal volumes of water are 

 introduced by five types of procedure. Dog. Each curve is the mean of 4 tests and indi- 

 viduals with bladder fistulae. A, tapwater introduced quickly by stomach; B, tapwater 

 subcutaneously in 0.2 hour after zero time ; C, tapwater by vein in 0.2 hour ; D, tapwater 

 subcutaneously in 1.0 hour; E, tapwater by vein in 1.0 hour. Data of Hashimoto ('14). 



