OTHER TYPES OF WATER INCREMENT 



55 



If fed with thyroid substance, diuresis follows the introduction 

 of water to the stomach just as promptly, but sometimes yields less 

 complete returns (B, fig. 34). The same procedure (so far as 

 stated) in another laboratory showed continued greater rates of 

 water output and equally complete returns during thyroid feeding 

 (B, fig. 35). Here is a regime, the only one known at present, that 

 augments the exchange above the usual. Privation of food super- 

 imposed on the procedures mentioned diminishes the response to 

 that without thyroid administration (Hatafuku, '33b). 



3 

 o 



3 



a: 



Sensible Water Load 



Fig. 35. Eate of urinary water output in relation to sensible water load during the 

 elimination of single doses of water given by stomach. A, standard state; B, thyroxin- 

 fed. Each point represents the mean for four dogs, in 18 and 20 tests altogether, the 

 same four individuals with * ' extended ' ' ureters being used for both sets A and B. Data 

 of Klisiecki et al. ( '33b, p. 534). 



If the dog is injected with pituitrin, the introduction of water 

 to the stomach induces no diuresis for some hours (Molitor, '26a; 

 Klisiecki et al., '33), after which the effects of pituitrin disappear. 

 Altogether less than two-thirds of the water administered is 

 returned in urine. 



Poisoning with phosphorus (C, fig. 36) appears to reduce the 



