Regulation of elevation and discharge of the Great lakes
Subtitle: designs for gates, sluices, locks, etc., in the Niagara and St. Clair rivers
By: by John R. Freeman...Dec. 30, 1925.  Revised to Oct. 1, 1926.
Contributors: Metropolitan Sanitary District of Greater Chicago.
Publisher: Akerman standard
Published: 1926
Place of publication: Providence
Language: eng
Number of pages: 555
Subjects: Chicago drainage canal; Locks (Hydraulic engineering); Great Lakes (North America); Niagara River (N.Y. and Ont.); Saint Clair River (Mich. and Ont.)
Notes: Includes extra numbered pages.