Rate of recession of Niagara falls - Gilbert, Grove Karl, 1843-1918; Hall, W. Carvel (William Carvel), 1869-1908. (Washington, Govt. Print. Off., 1907)
Subject series: B, Descriptive geology, 109; F, Geography, 54.
Issued also as House doc. no. 59, 59th Cong., 2d sess.
Also available in digital form on the Internet Archive Web site.
Also available in digital form on the Internet Archive Web site.
Keywords: Niagara Falls (N.Y. and Ont.)