St. Lawrence River. Surface water supply of United States, 1939: pt. 4, St. Lawrence River basin; Carl G. Paulsen, acting chief hydraulic engineer, C. L. Batchelder, F. C. Christopherson, H. E. Grosbach, A. W. Harrington. H. B. Kinnison, P. R. Speer, and C. V. Youngquist, district engineers.