SUMMARY OF RESULTS OF PREVIOUS OBSERVATIONS. 



27 



experiments on horizontal plane Continued. 



3 It was necessary to convert the distances from miles to meters and to compute the heat from 

 the oxygen consumption. 



4 Averages of individual heat values given for the groups in the original publication. 



6 In computing all heat values for Barkan and Viale, the value for lying without food was 

 assumed to be represented by 255 c.c. of oxygen; for Signorelli, 225 c.c. of oxygen. In one 

 experiment with Higgins, a corresponding value of 203 c.c. of carbon dioxide and of 265 c.c. of 

 oxygen was obtained. The weight of the clothing and the Douglas bag was about 7 kilograms 

 in each case. 



