EDUCATIONAL ORGANIZATIONS 357 



of deciduous fruit problems in culture and pest 

 control. 



At Shingle, Eldorado County, a leased property 

 of 4000 acres and- adjacent forest range of 17,000 

 acres are used for experiments and demonstrations 

 with range cattle, in connection with the University 

 Farm at Davis. 



At Petaluma a station for investigation of poultry 

 diseases supplementary to the poultry work at the 

 University Farm is maintained in cooperation with 

 the Supervisors of Sonoma County. 



In connection with its instruction and research in 

 forestry, the College has arboretums at Chico, Butte 

 County, and at Santa Monica, Los Angeles County; 

 also- a fine tract of natural forest of sequoias in 

 Tulare County. 



In the various undertakings enumerated, the Col- 

 lege of Agriculture expended during the year ending 

 June 30, 1920, $884,513, of which $165,722 were 

 received' from federal sources. 



As incidentally suggested here and there in pre- 

 ceding chapters, the general interest and apprecia- 

 tion of agriculture among Californians who are pur- 

 suing other vocations is very marked and wide- 

 spread and the influential participation of farmers 

 in the social and industrial organizations of cities 

 with rural environments is very great. In such places 

 the chambers of commerce and boards of trade are 

 for th T e most part rural development and improve- 

 ment agencies which bring urban and suburban 

 people into close social and industrial relations with 



