ADMINISTRATION 69 



extended or restricted. But the work is always 

 conducted from the standpoint of the maximum re- 

 turn for each dollar expended. 



In accordance with the policy outlined by the 

 Forest Service watersheds used for municipal sup- 

 ply or irrigation continue to receive first considera- 

 tion. Large sums are not, however, being spent on 

 such watersheds where any uncertainty as to the 

 outcome exists; that is before successful methods 

 have been perfected by experiment. In addition to 

 watersheds, reforestation work is being conducted 

 for the primary object of producing timber only 

 where climatic conditions and other factors are ex- 

 tremely favorable. As far as possible these areas 

 are being selected with reference to the low cost of 

 the work, natural conditions which insure rapid tree 

 growth, and urgent local need for additional timber 

 supplies. These favorable conditions generally ob- 

 tain in Washington, Oregon, Idaho, Montana, Min- 

 nesota, and Michigan and it is in these States that 

 the best results have been obtained. In California, 

 Utah, Nevada, Colorado, and the Southwest the 

 work is restricted to intensive experiments on a 

 small scale, until successful methods of meeting 

 the adverse local conditions have been perfected. 



