some Experiments in Climatological Physiology. 349' 

 Table X. 



1 



H 2 



Calc. 



co 2 . 



CO., 

 Calc. 



! 

 Ratio H o 0/C0 2 . 



1 



1802 15*29 



14-65 

 14-96 

 15-63 



18-19 



22-38 

 21-32 

 22-79 

 24-56 



21-83 

 2207 

 22-59 

 24-55 



0-683 

 0-670 

 0-683 

 0-743 

 Mean 0-695 



21-51 ' 14-28 



24-94 1556 



34-99 18-26 





It is desirable, if possible, to use the argument Tf again,, 

 and an examination of the results discloses the fact that 

 this argument is to be preferred. In this way we find from 

 the above data, by the least-square method in grammes, that 

 the loss of water E A from the lungs is 



E 7i = 14-29 + 0-00332 Tf, . . . 



(21> 



T being expressed in degrees centigrade and f in millimetres- 

 pressure. 



Similarly we find for the loss E d of carbon dioxide 



E rf = 21-56 + 0-00255 Tf. .... (22) 



The average ratio of the loss of water from the lungs to 

 the loss of carbon dioxide is 0*695 for the ranges m tempera- 

 ture and dryness of the experiment, but is of course a 

 function of these, if (21) and (22) represent the actual fact. 

 The actual loss of carbon would therefore be 3/11 of the 

 above, viz., 



E c = 5-88 + 0-0007 Tf. .... (23), 



It would thus appear that we could have one expression 

 to include both E h and E c , viz., Ej, that is, 



E Z =E A + E c = 20'17 + 0-004 T£ 



(24) 



It is questionable, however, whether either of these expres- 

 sions (21) and (23) holds after a temperature of say 31° C. is* 

 reached, when heat accumulation sets up physiologically 

 labile conditions, viz., conditions whereby the organic adjust- 

 ment of the thermolytic and thermomagnetic equilibrium is- 

 so disturbed as to be no longer capable of re-establishment. 



