St. Lawrence River. Surface water supply of United States, 1938: pt. 4, St. Lawrence River basin; Nathan C. Grover, chief hydraulic engineer, C. L. Batchelder, F. C. Christopherson, H. E. Grosbach, A. W. Harrington, H. B. Kinnison, S. B. Soulé, and C. V. Youngquist, district engineers.