UNITED STATES DEPARTMENT OP 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. B. 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 
GOVERNMENT PRINTING OFFICE 
1922 
