COKRELATIVES OF WATER CONTENT 



209 



Thiocyanate Volume 



Fig. 113. Volume of distribution of the dye T 1824 ("plasma" volume) (% of 

 body weight) in relation to volume of distribution of thiocyanate ("extracellular" 

 volume) (% of body weight). Dogs under control conditions; 15 individuals, averages 

 of 73 measurements. Open circles, males; solid points, females, of which 4 are repre- 

 sented by 2 points each. Data of Gregersen and Stewart ( '39). 



(T 1824) volume increases with the "extracellular" (thiocyanate) 

 volume. Male individuals have consistently higher ratios than 

 females. 



-15 -10 -5 +5 +10 +15 



Total Water Load 



Fig. 114. Increment in volume of distribution (% of Vo) in relation to mean total 

 water load (% of Bo). Dog. Line QQ' = load would be equal in partial volume and 

 in whole body. SCN -yoZ. = thiocyanate ("extracellular fluid") volume in 14 individuals 

 deprived of water and food; data of Gregersen and Painter ('39). T 1824 vol. = dje 

 ("plasma") volume in same 14. V B i;oZ = brilliant vital red ("plasma") volume in 

 10 individuals repeatedly given water by stomach for 8 hours; data of Greene and Eown- 

 tree('27). Hb vol. = dissolved hemoglobin ("plasma") volume in 5 individuals given 

 water by stomach during 1.5 hours; data of Lee, Carrier and Whipple ('22). CO vol. 

 = carbon monoxide ("erythrocyte") volume in same 5 tests. Hb+CO roL = hemoglobin 

 plus CO ("circulating blood") volume in same 5 tests. 



