Context of Report of progress of stream measurements for the calendar year 1904, prepared under the direction of F.H. Newell by R.E Horton, N.C. Grover, and John C. Hoyt. Part II. -- Hudson, Passaic, Raritan, and Delaware River drainages. [U.S. Geological Survey Water Supply and Irrigation Paper No. 125. Series P, Hydrographic Progress Reports, 30.].