17 



Cottonwood Lakes Reservoir Company, irrigation reservoirs, Battlement Mesa 

 Forest Reserve. 



Joseph H. Dale, irrigation reservoir, Battlement Mesa Forest Reserve. 



W. L. Perry, irrigation reservoir, Battlement Mesa Forest Reserve. 



Brown & Sanford Irrigation Company, irrigation reservoir, Salt Lake Forest 

 Reserve. 



Gustavus T. Robb, irrigation reservoir, San Juan Forest Reserve. 



Antoine Jacobs, irrigation reservoir, San Juan Forest Reserve. 



FOKEST MANAGEMENT. 



Forest Supervisor Bartrum has secured the clearing of a portion of a fire break 

 around the Ashland Forest Reserve in the vicinity of the city of Ashland by confin- 

 ing free use to this strip. The forest along the reserve boundary is an inferior stand 

 of yellow pine and red fir. The ground is nearly everywhere covered with a dense 

 growth of chaparral, making fires especially hard to fight. In sales and free-use 

 cases the cutting and piling of the underbrush has been required, as well as the 

 piling of the brush from all trees cut. The ground so cleared has then been burned 

 over at safe seasons. The result is a clear strip of ground, across which no fire can 

 run, and from which back fires may be started with perfect safety. The break has 

 already proved itself useful by stopping two fires, supposed to have been set by 

 lightning, which would otherwise have been almost impossible to control before they 

 burned thru a considerable stretch of timber to a ridge top. 



Certain portions along the fire line however, belong to the Southern Pacific Rail- 

 road Company, and the company has given permission to the Forest Service to clear 

 a line on its lands, since this will protect these lands as well as the reserve, and will 

 be a great benefit to the city of Ashland and the country tributary to the lands of 

 the railroad. 



Supervisors have been instructed that where there is an overcut in a Class B tim- 

 ber sale, this should be reported as an excess cutting and charged to the original 

 sale. The duplicate letter of transmittal for the excess should therefore bear the 

 same designation as the original sale. Care should be taken in making Class B sales, 

 however, that the value of the timber cut does not exceed $100. 



DENDROLOGY. 



Extension of the Turpentine Industry to Western States. 



In connection with exhaustive investigations to determine the most conservative 

 method of chipping pine trees for turpentine, a thoro study was begun of the dis- 

 tinguishing characteristics of resins and turpentines derived from each species. 

 This study has been directed mainly to southeastern pines, but it included analysis 

 of the crude resin of the western yellow pine. The special object of investigating the 

 western yellow pine was to ascertain whether or not it would yield commercial tur- 

 pentine. Analyses of crude resin collected from California give from 20 to 22 per 

 cent of turpentine, which is 1 or 2 per cent above the average yield from the stand- 

 ard turpentine pines of the South. Studies of this resin from trees in other parts of 

 its range are being prosecuted in order to establish the general productiveness of 



