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UNITED STATES DEPARTMENT OF AGRICULTURE 

 BULLETIN No. 1067 



Contribution from the Bureau of Public Roads 

 THOMAS H. MacDONALD, Chief 



Washington, D. C. 



PROFESSIONAL PAPER 



June, 1922 



TESTS OF 



DRAINAGE PUMPING PLANTS IN 



THE SOUTHERN STATES 



By 



W. 6. GREGORY, Irrigation Engineer 



CONTENTS 



* . Page 



Introduction 1 



Types of Pumps 2 



Suction and Discharge Pipes 3 



'Sources of Power for Pumping Plants 5 



Tests of Pumping Plants 6 



Cost of Operation of Plants 44 



WASHINGTON 



'OVKHNMENT PRINTING OFFICE 



1922 



