16 



Mr. W. North. The Influence of 



[Nov. 15, 



Experiment III, 1882. 

 1st Period. 



Daily. 



Before 

 work. 



After 

 work. 



D iff 6 1* 6 n C 6 . 





12-92 



13-47 



+ 0-55 





1-43 



2-14 



+ 0-71 





14-35 



15-61 



+ 1-26 





1-80 



1-51 



-0-39 





0-95 



2-01 



+ 1-06 





2-75 



3-52 



+ 0-77 





2-58 



2-83 



+ 0-25 



2nd Period, 



Before 

 work. 



After 

 work. 



Difference. 



13-23 



18-27 



+ 5-04 



1-83 



2-43 



+ 0-60 



15-07 



20-75 



+ 5-68 



1-63 



2-35 



+ 0-72 



1-56 



2-40 



+ 0-84 



3 19 



4 -75 



+ 1-56 



2-72 



3 -40 



+ 0-68 



Daily. 



Nitrogen of urine 

 fseces 



Total nitrogen . . . 

 P- 2 3 of urine . . . . 

 P 2 5 of fseces 



Total P 2 5 



HoS0 4 °f urine . . 



The 2nd Period. 



The whole of Period I is included in the time before work, although 

 work was done. 



The work done. 

 Experiment. Distance walked. Miles per hour. 



I, 1882 30 miles ...... 4*28 



II, 1882 32 4 -57 



III, 1882— 



Period 1 33 „ 4-71 



Period II 47 „ 4 7 



In each case the load carried was about 27 lbs. 



Conclusions. 



My results, while they confirm those of Dr. Parkes, show that the 

 disturbance produced by very severe labour is much more immediate 

 and of much greater intensity than that which Dr. Parkes observed, 

 the explanation obviously being that in his experiments the exertion 

 imposed on the soldiers who were made the subjects was inadequate. 



