OTHEK TYPES OF WATER INCREMENT 



57 



diuresis miglit be observed. Given by peritoneum still other rela- 

 tionships are expected (Darrow and Yannet, '35) ; for oliguria and 

 aposia (not drinking) now prevail together. 



Enough instances have been cited to illustrate the variety of 

 responses (table 3) that may be observed after administration of 

 excesses of fluid to dogs. To consider the dogs under these various 

 administrations, conditions, regimes, and solutions in a single cate- 

 gory leads to confusion. . Some of their contrasts are indicated in 

 the right half of figure 38. In diverse sets of measurements after 



water is given by stomach under supposedly identical conditions, 



+100r 



I £ 3 4 5 



Hours 



Fig. 37. Course of total water load (relative to volume infused) in dogs in four 

 states. About 8 % of Bo of 0.15 M sodium chloride solution is infused by vein at zero 

 time. Data of Davis and Dragstedt ( '35). A, 2 tests after deprivation of drinking water 

 for 12 days; B, 11 tests after continued total loss of pancreatic juice; C, 3 tests after 

 total loss of gastric juice for 8 to 11 days ; D, 3 tests in control state. 



the velocity quotient varies between 2.4 and 0.3/hr. The highest 

 rates occur with thyroid administration (velocity quotient 3.5/hr.) ; 

 the lowest with pituitrin and with intravenous water (velocity 

 quotient 0.02/hr.). Yet all these varieties of water excess (and 

 others too) are commonly referred to as states of ''hydration," 

 ''positive water balance," "hydremia," and the like. In reviews 

 {e.g., Adolph, '33, p. 348) observations from one or several of them 

 are quoted in the same sentence as being coordinate facts, as occur- 

 ring or predicted for all forms of water excess. 



Once it is recognized that the sequelae, of any one means or of 



