76 REPORT OP OFFICE OP EXPERIMENT STATIONS. 



The experiments in crossing Tunis on native sheep have involved 

 about 800 head up to date, and the flock at the station farm at the 

 close of the past year consisted of 350 sheep. A number of crosses 

 now in the third generation are showing good wool and mutton 

 quality. The dominance of Tunis characters is very evident in these 

 crosses. 



The experimental farm of about 8 acres near Yuma is a demonstra- 

 tion of intensive farming and is supported by State funds. The 

 crops tested inchide several varieties of wheat, alfalfa, sugar beets, 

 sweet potatoes, cabbage, asparagus, onions, melons, and dates. 



The cooperative extension and farmers' institute work of the sta- 

 tion was in general supported and carried on in the same manner 

 as heretofore. 



The following publications were received from this station during 

 the year: Bulletin 64, Ground-water Supply and Irrigation in the 

 Eillito Valley ; 65, The Grazing Ranges of Arizona ; and the Annual 

 Reports for 1909 and 1910. 



The income of the station during the past fiscal year was as fol- 

 lows: 



United States appropriation, Hatch Act $15,000.00 



United States appropriation, Adams Act 15,000.00 



Balance from previous year, State appropriation 7, 183. 07 



El Paso & Soutliwestern Railroad, including balance 



from previous year 3,267.44 



Farm products 2,529.57 



Total 42, 980. 08 



The Arizona station is thoroughly investigating a number of 

 problems of prime importance to the agriculture of the State, and 

 several of these lines of work have reached a stage of development 

 in which the results are ready for application in agi'icultural prac- 

 tice. 



ARKANSAS. 



Arkansas Agricultural Experiment Station, Fayetteville. 



Department of the University of Arliansas. 



C. F. Adams, B. Agr., A. M., M. D., Director. 



A number of changes occurred in the staff of the Arkansas station 

 during the year, and although to some extent interrupted by these 

 changes the work progressed along definite lines. 



The Adams fund projects were continued and progress in them 

 was made. A project on the cattle tick was concluded, but some 

 further work was done on the life history of the tick. The virulence 

 of ticks, the methods of infection, and other factors in distributing 

 the disease were investigated, together with the relation of hog- 

 cholera and swine-plague bacilli to diseases of hogs. 



