OFFICE OF EXPERIMENT GTATIONS. 



187 



are undertuken there are, of course, many details which have to be 

 worked out for each case as it arises, and no general rules can be 

 devised which v»'ill cover all such matters, but with the general prin- 

 ciples and methods well established there is, as a rule, comparatively 

 little difticulty in arranging the details of cooperation. 



Without doubt great progress has recently been made in bringing 

 the Department and the stations into closer touch, and through their 

 cooperation important investigations for the benefit of agriculture in 

 many parts of the country have been greatly strengthened. The rec- 

 ords of this Office show that the Department is at present cooperating 

 with the stations in 43 States and Territories. Among the subjects 

 on which cooperative investigations are being conducted are the 

 following : 



Tests of varieties of grasses and forage plants in many localities ; 

 special experiments with grasses and forage plants for the arid region 

 and the improvement of range lands; breeding experiments with 

 plants, especially cereals; experiments with hybrid orange trees; the 

 culture of sugar beets, dates, and tobacco; planting forest trees; the 

 nutrition of farm animals and man; the gluten content of wdieat; 

 plants poisonous to stock; soil investigations; injurious insects, 

 especially the codling moth and locust, and irrigation investigations. 



The following is a list of the cooperative enterprises between the 

 Department and the stations as at present recorded in this Office. 

 Besides the more formal enterprises which involve the expenditure of 

 more or less money on both sides, this list includes a number of 

 minor operations for which no formal contracts have been made : 



Summary of cooperative enterprises between the Department and the stations. 



