Manpower. Handicapped workers. Ineligible for the army because of physical handicaps, James C. Schneider (left) and John D. Arrowood are two of Uncle Sam's ablest soldiers of production. They are inspectors of airplane motor parts in a Baltimore factory. Twenty-year-old Schneider has not let infantile paralysis interfere with war work, nor has twenty-four-year-old Arrowood allowed his polio-disabled leg and curvature of the spine to prevent his making a valuable contribution to the war effort. White Engineering Company, Baltimore, Maryland