BUREAU OF FORESTRY. 195 



which was to form the future forest and to the injuiv to tlie forest 

 soil from the burning out of its humus. A summary of the informa- 

 tion gathered \\ as published by the Bureau as Circular No. i'6. The 

 circular has been most useful not only' in supplying information to a 

 deeply concerned public, but also in giving the legislature of the State 

 of New York a >ound basis for undertaking needed improvements in 

 the State system of fire protection. 



Dunes. 



The application of forestry to the reclamation of shifting sand was 

 considered during the past year, principally in connection with the 

 sandhill districts of southern Michigan, where a small party worked 

 for two months gathering data on the extent of shifting sand and the 

 trees and shrubs which are adapted to grow upon it. ^Methods of 

 reclamation which have been employed were closely examined. 

 Opportunity has not yet been afforded to put the data which have 

 been obtained on this subject into form for publication. Until this. 

 can be accomplished field work will be suspended. 



Additioxal Cooperative Work. 



The office of Forest Extension participated in several lines of work 

 described under State Cooperative Studies. It made the examination 

 of the Hawaiian forests, and conducted the work in cooperation with 

 the Massachusetts Forestry Association. It also conducted the inves- 

 tigations of the growth and value of planted eucalyptus, of forest 

 replacement, and of chaparral conditions and their improvement in 

 southern California, carried on by the Bureau in cooperation with the 

 State of California, as well as the work done toward the inauguration 

 of an effective forest-fire policy for that State. 



Expenditures. 



The expenditures in forest extension during the past yi'ar amounted 

 to $67,119.19, or 16 per cent of the appropriation of the Bureau. 



Work for the Ensuing Year. 



The making of planting plans under the slightly' modified plan of 

 cooperation will continue during the ensuing year. Field studies for 

 extensive planting plans will be made of Griffith Park, near Los 

 Angeles, Cal., and parts of -the Paloduro Canyon, in northwestern 

 Texas. Studies of the success of planted timber will be made in eastern 

 Nebraska, eastern North and South Dakota, and northern Illinois. 



Planting will be extended on the Dismal River Reserve, continued on 

 the San Gabriel Reserve, and begun on the Pikes Peak Reserve. Study 

 will be made of the replacement of the forest on the Salt Lake Reserve, 

 which may lead to the beginning of planting there. The studies in 

 progress on forest replacement and chaparral conditions in southern 

 California will be concluded and the data compiled for publication. 

 In connection with the study of the success of planted timber in 

 Nebraska, North Dakota, South Dakota, and Illinois, examination will 

 be made of the encroachment of the natural forest upon new areas. 

 The study of methods of controlling forest fires in California will be 



