EXCAVATING MACHINERY USED IN LAND DRAINAGE. 39 
OFFICE OF EXPERIMENT STATIONS CIRCULARS. 
Cir. 74. Excavating Machinery Used for Digging Ditches and Building Levees. 
Price, 5 cents. 
76. The Swamp and Overflowed Lands of the Uriited States. Price, 5 cents. 
80. Report upon the Drainage of the Lands in the Kankakee River Valley, 
Indiana. Price, 10 cents. 
81. Report upon the Drainage of Agricultural Lands in Bolivar County, Miss. 
Price, 5 cents. 
86. Preliminary Report on the St. Francis Valley Drainage Project in North- 
eastern Arkansas. Price, 10 cents. 
88. Organization, Work, and Publications of Drainage Investigations. Price, 5 
cents. 
103. The Drainage Situation in the Lower Rio Grande Valley, Tex. Price, 5 
cents. 
OFFICE OF EXPERIMENT STATIONS SEPARATES. 
Sep. 1028. Reclamation of Tide Lands. Price, 10 cents. 
1136. Progress in Drainage. Price, 5 cents. 
1144. Drainage Investigations, 1907-8. Price, 5 cents. 
1315. Reclamation of the Southern Louisiana Wet Prairie Lands. Price, 10 
cents. 
ADDITIONAL COPIES 
OF THIS PUBLICATION MAY BE PROCURED FROM 
THE SUPERINTENDENT OF DOCUMENTS 
GOVERNMENT PRINTING OFFICE 
WASHINGTON, D. C. 
AT 
15 CENTS PER COPY 
V 
WASHINGTON : GOYEPvXMENT PRINTING OFFICE; 1915 
