The Potomac River basin; geographic history--rainfall and stream flow--pollution, typhoid fever, and character of water--relation of soils and forest cover to quailty and quantity of surface water--effect of industrial wates of fishes
Parker, Horatio N. (Horatio Newton), 1871-1946; Willis, Bailey, 1857-1949; Bolster, R. H. (Roy Hale), b. 1877; Ashe, W. W. (William Willard), 1872-1932; Marsh, Millard Caleb, 1872-