OFFICE OF EXPERIMENT STATIONS. 763 



Princess Anne Academy Tract (Somerset County). Virginia : Bech- 

 tel Farm (York County), Cumberland Farm (Norfolk County), 

 Virginia Truck Experiment Station Farm (Princess Anne County), 

 Cuthbert Land and Development Company (Fairfax County). Ver- 

 mont: Morgan Horse Farm (Addison County). 



V. Drainage of irrigated lands. — California: Fresno. Colorado: 

 San Luis Valley, Grand River Valley. New Mexico: Pecos Valley. 

 Texas: Lower Rio Grande Delta, Val Verde Irrigation Company's 

 Tract (Val Verde County). Utah: Various tracts in several coun- 

 ties. "Washington: Yakima Valley, including the Moxee Valley. 

 Wyoming: Laramie (State Experiment Farm), Big Horn Basin, 

 including Grey Bull Valley, Shoshone Valle3^ 



PRELIMINARY EXAMINATIONS AND CONSTRUCTION WORK. 



In addition to preliminary examinations having been made and 

 reports written for all the projects enumerated under drainage sur- 

 veys, similar examinations and reports have also been made for the 

 following: 



Alabama: Big Spring Branch (Madison County). Arkansas: 

 Cypress Drainage District (Chicot and Desha counties). "V\Tiite 

 River (TTliite County), Throgmorton Tract (Randolph County). 

 Georgia : Glynn, Bryan, Clinch, Echols, Liberty, and Mcintosh coun- 

 ties. Illinois: Cache River Drainage District. Iowa: Monona, 

 Harrison. "Woodbury, and Pottawattamie counties. Kansas: Verdi- 

 gris and Fall rivers. Louisiana : Fifth Louisiana Levee District. 

 Mississippi: Black Creek (Holmes County). Nebraska: "Upper Elk- 

 horn Valley (Holt County). Red and Sulphur rivers. North Caro- 

 lina: Haw River (Rockingham County), Little Creek (Orange and 

 Chatham counties), Salem Creek (Forsyth County), swamp lands in 

 Robeson County, TuiTibull Swamp, various streams in Iredell, 

 Rowan, and Cabarrus counties, Oklahoma : "Washita River ("Wash- 

 ington County), Black Bear Creek (Noble and Pawnee counties). 

 Tennessee: North and Middle Forks of Forked Deer River (Gibson 

 County). Texas: Elm Fork of Trinit}^ River. 



The following projects for which this Office has made surveys and 

 prepared plans are now under construction by landowners: 



Louisiana : "Willow Bayou. Mississippi : Boggy Bayou Drainage 

 District, Bogue Hasty Drainage District (Bolivar County). North 

 Carolina : Lower Creek Drainage District (Caldwell and Burke coun- 

 ties), Moyock Drainage District No. 1. Virginia : Cumberland Farm 

 (Norfolk County). 



GENERAL TECHNICAL INVESTIGATIONS. 



Special investigations have been carried on to determine: The run- 

 off irom various Louisiana lands where pumps are required to remove 

 the water; the proper method of draining irrigated lands affected 

 by alkali or seepage, or both; the effect of alkali solutions on cement; 

 the best methods of draining alkali lands in the Rio Grande Valley, 

 Texas; the best methods of draining salt-marsh lands of the Atlantic 

 coast ; the water content of muck and peat soils in Louisiana and 

 Florida. 



