532 



PHALEN. 



red was slightly greater than for those wearing white, a logical effect of 

 the increased perspiration for the first group. 



Temperature, pulse and respiration. — These observations were taken 

 as soon as possible after the subjects had completed a tour of drill or 

 fatigue duty or other exercise causing exposure to the sun's rays. A total 

 of about 4,000 observations were taken upon each set of men. The follow- 

 ing table gives the average of 1,500 .observations upon each group. Only 

 the figures are given at this time, any abnormalities of the rhythm or 

 quality of the pulse or respiration being noted under another heading. 



Table V. 



Group. 



Temper- 

 ature. 



Pulse. 



Respira- 

 tion. 





°F. 

 98. 792 

 98.780 



91.2 

 90.9 



22. 2 

 21.3 



| White. ._ 





The variation from the normal temperature is very slight in either 

 group, and the difference between the two is so slight as to be wholly 

 negligible. In both, the pulse and respiration rates are higher than the 

 normal, and in both instances the special group of men show higher rates 

 than the controls, although these differences are not very marked. 



Strength tests. — At the outset of the experiment a requisition was made 

 for hand dynamometers of a certain make, the object being to keep a 

 record of the strength of the subjects of the test. The instrument asked 

 for was one that not only marked the force of the grip but also the time 

 for which it could be sustained. The apparatus sent did not meet the 

 requirements, as it registered only the strength of the initial grip. A 

 large number of observations were made with this instrument but they 

 ■ were found to be of no value whatever without the element of time. It 

 was observed that a man greatly fatigued, whose strength as recorded by 

 the more elaborate ergometer was depressed 50 per cent from the normal, 

 could still muster strength for the moment practically to equal his normal 

 grip. For these reasons no tabulation of the strength is given. The 

 Brem's ergometer was used only for special experiments, it being too 

 large and heavy to be of general use in the test. 



Comparative sick reports. — The table which follows gives a comparison 

 of the number of cases of illness of the different classes together with the 

 number of days lost from each cause, and for better comparison the cases 

 and days reduced to rates per thousand men. All cases of injury or other 

 accidental disease, veDereal diseases and other causes of admission upon 

 which climate could have no effect have been excluded from this 

 comparison. 



