The Internet Archive has a preservation copy of this work in our general collections.
Army Board arc valuable because the number of men observed-over 700-is so large that the element of chance is eliminated. After twenty months of Philippine service healthy American soldiers living near the sea level and averaging 2(> years of age show: 1. A red-cell count averaging 5,200,000 per cubic millimeter, and rarely falling below 4,500,000. 2. A hemoglobin reading averaging 89.6 per cent, and rarely falling below 8,r> per cent.doi:10.1001/jama.1912.04260060109015 fatcat:r655m25j4rhftjwing2fy6m4fq