122 



Influence of Inanition on Metabolism. 



*See pp. 42-49. 



energy and heat computations. As shown above, the feces passed during the 



experiment were not an excretory product as a result of fasting metabolism 



and had they been retained in the colon until the end of the experiment would 



have affected in no wise the heat or energy balance. 28 Indeed, in some of the 



fasting experiments the feces were artificially removed by means of an enema 



before the subject entered the chamber, and none were passed during the time 



of the experiment. Accordingly in the fasting experiments it was assumed that 



the feces were retained in the body, and hence the weight of material as well as 



the heat lost by cooling from body temperature to calorimeter temperature 



were computed and corrected for, in column c of table 74. Allowance has 



been made in line ; of table 73 for feces passed, the amounts being deducted 



from the total loss of weight in order to make the data comparable with the 



balance of income and outgo. The feces passed during the fasting experiments 



were not analyzed. 



Output of Heat. 



The calorimetric measurements are summarized as usual and correction 

 made for changes in body temperature and body-weight. The total heat 

 production is recorded in column d of table 74. Although the data for the 

 preliminary night are also included, it is to be borne in mind that the value 

 of the results for these three periods is somewhat uncertain because of the 

 necessary incompleteness of preliminary heat corrections. 



28 The reabsorption of small amounts of material in the large colon is probable, 

 but hardly a quantitative factor. 



