368 



The Efficiency of Man, &c. 

 M. (Woman) under Experiment. 



The five tables include sixty-seven experiments, being all those made (seventy- 

 one in number) with the exception of four; these, which were undertaken on four 

 consecutive days, when the work was resumed last autumn, yielded for the value 

 of the efficiency, at any rate in three cases, figures obviously much too high, and 

 which have been omitted on that account; they were the following: for E. R., 

 0'462, 0'231, 0'384, 0'363. These irregularities are apparently due to some 

 accidental mis-estimation of the water from the melted ice. 



In every case, as will be readily seen from the foregoing tables, the 

 amount of heat emitted under exercise is largely in excess of that 

 given out in a state of rest during the same time ; this excess, in the 

 case of the five persons under experiment, amounted to 



Per cent. 

 In thirty minutes. of normal. 



11-795 cal. for W. M 25-7 



24-377 , , E. B. F. 55-5 



18-852 



E. E. 



In one hoar. 



38-012 cal. for E. B. F. 

 40-102 , , E. E. 



36-929 

 34-830 



E. F. 

 M. 



36-0 



41-6 

 33-2 

 34-2 

 44-6 



Calories excess + 



theoretical for 1000 



kilogram-metres. 



12-511 



16-314 



15-203 



13-421 

 14-046 

 14-159 

 12-407 



From a consideration of the foregoing tables it will be seen that the 

 inquiry as to efficiency, made on five different persons, yielded the 

 following results : 



