HYDROLOGY OF NEW YORK 



321 



thus far made. The reasons for this view may be derived from 

 the preceding discussion of the runoff of Niagara river. 1 



St Lawrence river. According to the report of the Deep Water- 

 ways Commission, the area of the water surface of Lake Ontario 

 is 7450 square miles, and the area of the tributary catchment, 

 exclusive of the area of the lake itself, 25,530 square miles. The 

 total area of the catchment basin, including both land and water 

 surfaces, is 32,980 square miles. The area of the water sur- 

 faee of St Lawrence river from Gallops rapids to Montreal 2 is 

 given at 220 square miles, and the area of the tributary catchment 

 at 5710 square miles; hence the total area of the basin of the 

 St Lawrence frorn^ Gallops to Montreal becomes 5930 square 

 miles. 



In the foregoing figures Lake Ontario is considered as beginning 

 in Niagara river, at the foot of Niagara Falls and terminating 

 at the head of Gallops rapids, whence the following subdivisions 

 of water-surface area are derived; Niagara river, 5 square miles; 

 Lake Ontario proper, 7260 square miles; St. Lawrence river, 185 

 square miles ; giving a total, as above, of 7450 square miles. 



Of the total area of catchment of 25,530 square miles, 14,275 

 square miles lie within the State of New York and 11,255 square 



*For literature of discharge of Great Lakes and allied questions see (1) 

 reports Chief of Engineers, 1868, 1869, 1870, and 1882; (2) reports Chief of 

 Engineers, 1893; (3) Eng. News, Vol. XXIX (March 2, 1893) ; (4) The Lakes 

 and Gulf Waterways, by L. E. Cooley ; (5) The Level of the Lakes as affected 

 by the Proposed Lakes and Gulf Waterway, a discussion before the Western 

 Society of Engineers, in Jour, of the Assn. of Eng. Socs., Vol. VIII (March, 

 1889) ; (6) An Enlarged Waterway Between the Great Lakes and the Atlan- 

 tic Seaboard, by E. L. Corthell, with discussion, in Jour, of the Assn. of 

 Eng. Socs., Vols. X and XI (April, June and December, 1891, and July, 

 1892); (7) Lake Level Effects on Account of the Sanitary Canal at Chicago, 

 by L. E. Cooley, in Proceedings International Deep Waterways Convention, 

 at Cleveland, September, 1895; (8) A Technical Brief, by Thomas T. John- 

 ston, covered by the preceding reference; (9) papers by William Pierson 

 Judson, on An Enlarged Waterway Between the Great Lakes and the At- 

 lantic Seaboard, pamphlets. 1890 and 1893; (10) Report of Board of Engi- 

 neers on Deep Waterways, Document 149. Fifty-sixth Congress, Second Ses- 

 sion, House of Representatives (1900). Also (11), Report on The Regulation 

 of Lake Erie, by George Y. Wisner. Document No. 200, Fifty-Sixth Con- 

 gress, First Session, House of Representatives (1899). This latter report is 

 also given in The Report of the Board of Engineers on Deep Waterways, 

 as per reference (10). 



2 Report of U. S. Deep Waterways Commission, 1897, House Document 

 No. 192, Fifty-fourth Congress, Second Session, pp. 151-153. 



