St. Lawrence River. Surface water supply of United States, 1942: pt. 4, St. Lawrence River basin; prepared under direction of Glenn L. Parker, chief hydraulic engineer, F. C. Christopherson, D. M. Corbett, A. W. Harrington, H. B. Kinnison, J. H. Morgan, P. R. Speer, and C V. Youngquist, district engineers.