INFLUENCE OF PHILIPPINE CLIMATE ON WHITE MEN. 



451 



with its 5.5 years of Philippine service, the results are inconclusive. 

 On most of the points the advantage seems to be with the brunettes, but 

 on a few the reverse is the case. It is interesting to note that the men 

 of mixed type, who stand intermediate between blonds and brunettes, 

 appeared to suffer from the deleterious influence of the tropical climate 

 more markedly, for nearly every point investigated, than did the indi- 

 viduals of the blond type. This latter fact suggests that some factor 

 other than complexion (possibly chance), may have had a hand in 

 moulding the resrdts in the S-C-P-Group. 



Px-i-HT V. RELATIVE PROPORTIONS OF BLONDS AND BRUNETTES AMONG SOL- 



GROUP, AS COMPARED WITH THE PROPORTIONS OF THE SAME TYPES 

 AMONG -10,073 SOLDIERS. 



As a standard for comparison we carefully examined 10,072 enlisted 

 men of the United States Army in the Philippines during the years 1909, 

 1910, 1911, and divided them into 3 complexion types, blond, brunette, 

 and mixed, using the classification referred to just below Class VI under 

 "Sources of Evidence." The results are shown in Table XXIY. 



Table XXIV. — Comparative number of blonds, brunettes, and miwed types among 



10,012 soldiers {1909 to 1911). 



Actual number 



Rate per 1,000 men 

 Rate per 100 blonds 



Blond. 



Brunette. 



2,403 

 238 

 100 



2,073 



206 



8(5 



Mixed 

 type. 



5,696 

 556 

 233 



In the last line of Table XXIV the actual numbers have been reduced 

 to a percentage basis for subsequent comparison with other groups of 

 men and it is seen that for each 100 blonds there were 86 brunettes and 

 233 of the mixed type. 



SOLDIERS INVALIDED HOME. 



The figures in Table XXIV may be taken as representing the average 

 proportions of the 3 types among the enlisted personnel of the Army 

 serving in the Philippines at the time of these observations. If the 

 climate be more harmful to the blonds than to the brunettes we should 

 expect that the proportions of incapacitated blonds to incapacitated 

 brunettes would be greater than the ratio of 100 to 86. To determine 

 if such were the case, we have carefully inspected during the last eighteen 

 months all soldiers invalided home from the Philippines and the results, 

 giving actual numbers and rates per 1,000 men, are shown in Table 

 XXV. The mean strength of the command from which this invaliding 

 occurred was approximately 11,678 men. 



