488 CHAMBERLAIN. 



CONCLUSIONS. 



From our own work it may be concluded that, after about twenty 

 months of Philippine service, healthy American soldiers, living near sea- 

 level and averaging 26 years of age, will show: 



1. A red cell count averaging 5,200,000 per cubic millimeter, and 

 rarely falling below 4,500,000. 



8. A hsemoglobin reading averaging 89.6 per cent, and rarely falling 

 below 85 per cent. 



3. A color index averaging 0.86 or 0.87. 



Such a red cell count does not differ from the normal at present 

 recognized for healthy young men in the temperate zone. The hsemo- 

 globin percentage and the color index are probably a little low, but not 

 sufBciently so to indicate a definite anaemia. The pallor not infrequently 

 met with among apparently healthy persons in the Tropics we believe 

 to be due as a rule to superficial ischsemia and not to a deficiency in the 

 total quantity, or in any particular constituent, of the blood. 



EEFERENCES. 



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