containing a general plan for the improvement of the Potomac River and Tributaries ... for the purposes of navigation and efficient development of its water-power, the control of floods, and the needs of irrigation.. Gr.-8°. Mit 9 Tafeln und 17 Karten. XXIII, 495 SS. OLn. (angestaubt und fleckig).


"73rd Congress, 1st Session. House Document No. 101 ".- Contents: "General description of watershed. Forest cover. Hydrology. Probable future rainfall. Estimates of flow. Types of water powers. Market and value of power. South branch of Potomac River. Monocacy River. Main Potomac River. Washington, D. C. Water supply, Washington metropolitan area" etc.