1" (oi 



PROFESSIONAL PAPER OF THE CORPS OF ENGINEERS NO. 34 



TIDAL HYDRAULICS 



By 



BRIGADIER GENERAL GEORGE B. PILLSBURY 

 U. S. A., RETIRED 



NOVEMBER 1939 



WAR DEPARTMENT 

 CORPS OF ENGINEERS, U. S. ARMY 



UNITED STATES GOVERNMENT PRINTING OFFICE 



WASHINGTON : 1940 



F^r sale by the Superintendent of Documents, Washington, D. C. Price $1.00 



