OFFICE OF EXPERIMENT STATIONS. 843 



Las Animas consolidated drainage district (Bent County). Idaho: 

 Tile drainage systems on farms of F. H. Keniohan, near Nampa, 

 C. F. Eder and W. W. Kinney, near New Plymouth (Canyon County). 

 Maryland: Beltsville Experiment farm (Prince George County). 

 North Carolina: Little Sugar Creek (Mecklenburg County), Back 

 Swamp and Jacob Swamp drainage district (Robeson County), 

 Third Creek (Iredell County). Oklahoma: Deep Fork of Canadian 

 River (Lincoln County). Utah: Various projects distributed over 

 the State. Texas : Ross farm (Cameron County) . Virginia : Bechtel 

 farm (York County), Strathmore Orchard Co. tract (Shenandoah 

 County), Arlington Experiment Farm (Alexandria County). 



GENERAL TECHNICAL INVESTIGATIONS. 



The studies of run-off under various conditions of rainfall, topog- 

 raphy, soil, and vegetation, which were undertaken last year, were 

 concluded, although further studies will be made in the next year 

 or two. Experiments were made to determine the practicability of 

 using explosives for ditch construction in various parts of the 

 country and to ascertain the efficiency of windmills for pumping 

 drainage water in the irrigated section of Texas. The investigation 

 of the wet prairie lands of Louisiana was continued, particular atten- 

 tion being given to the methods and cost of draining those lands by 

 means of pumps. A study was made in connection with the Alabama 

 Agricultural Experiment Station of the best methods of underdrain- 

 ing the prairie soils of that State, and several experimental drain- 

 age systems were installed. This work is to be continued. The study 

 of special problems involved in the prevention of injury of irrigated 

 lands by seepage and alkali was continued. 



DISSEMINATION OF INFORMATION. 



The assignment of engineers to permanent field headquarters has 

 rendered them more accessible to personal consultation by individuals 

 and organizations. A large amount of advisory work of this nature 

 was done by these representatives, as also by correspondence with 

 the Washington office. Some of the more important projects in which 

 such assistance was given are the following — Indiana: Patoka River 

 (Pike County). Missouri: Crooked River (Ray County), Locust 

 Creek (Linn County), Wyaconda River (Clark County). Nebraska: 

 Nemaha River project (Johnson County). North Carolina: Matta- 

 muskeet drainage district No. 1 (Hyde County). Tennessee: North 

 Fork of Forked Deer River (Gibson County). 



WORK PLANNED FOR THE FISCAL YEAR ENDING JUNE 30, 1913. 



Special attention will be given to farm drainage, the growing 

 interest in this form of improvement having resulted in largely in- 

 creased demands upon the office for assistance in work of this nature. 

 The placing of field engineers in permanent headquarters has made it 

 possible to conduct preliminary examinations more conveniently and 

 economically, and an increased number of such examinations will be 

 made. The practice of assisting engineei*s in the solution of drain- 

 age problems in particuhir projects will be continued. In especially 



