1. Second partial report on Project no. 21 -- Determination of the sources, magnitude, and costs of gunnery errors Author(s): Hatch, Theodore F., authorLawson, Glasselle S., authorDailey, J. G., author Publication: Fort Knox, Kentucky : Armored Medical Research Laboratory, 16 June 1944 Subject(s): Wounds, Gunshot -- prevention & controlAccident PreventionMilitary PersonnelWorld War IIUnited States