INTEERELATIONS AMONG COMPONENTS 403 



''happen" to be simultaneous; rather their simultaneity manifests 

 the quantitative interrelations among them. Meanwhile the spe- 

 cific communications by which they are related remain unidentified. 

 What is learned from simultaneous increments of two com- 

 ponents that was not found in each component separately (figs. 61 

 and 144) ? 



(1) Recovery of water content is slower after excess of ice 

 water than after excess of warm water (data of Pinson and Adolph, 

 '42). 



(2) Recovery from deficit of water content is faster after the 

 subject is overheated than after he is only deprived of water 

 (fig. 58). 



(3) Maximal rates of total water loss during exercise in a hot 

 atmosphere (loading) are greater than those in positive water load 

 without exercise (unloading). 



(4) Recoveries of water take longer than recoveries of heat, in 

 both of the combinations tested. Or, heat velocity quotients are 

 greater in positive heat loads than in negative heat loads, they are 

 greater than water velocity quotients in negative water loads, and 

 in positive water loads. 



(5) During exercise in the hot desert (loading) the velocity 

 quotient for water loss approximately equals that for heat gain. 

 A corollary of this fact is that line J is straight, water loss being 

 proportional to heat gain during the exercise. It is strictly not 

 characteristic of all exercise tests in the desert nor elsewhere. 



(6) Rapid water loss (sweating) accompanies a large heat load 

 and a rapid heat loss. Even if no one knew that vaporization of 

 water is always accompanied by a loss of heat, the establishment 

 of this relation would be just as significant, upon the criterion of 

 description. The "willingness" of the organism to contract a 

 water debt when in positive heat load seems to me of the same order 

 as the ''willingness" to absorb the cold as well as the water from 

 the alimentary tract into which ice water is put. The constitution 

 of the organism and of the universe makes them equally inevitable, 

 I believe. 



How reciprocal is the correlation between heat exchanges and 

 water exchanges in the course of daily life? Negative water load 

 develops where positive heat load prevails, but usually not vice 

 versa, for negative heat load often induces negative water load too 



