FORESTEY. 545 



Methods and seasons for Douglas fir reforestation, W. D. Hayes (pp. 68-70). — 

 This experiment is similar to tiie one above noted for yellow pine reforestation. 

 Although no definite conclusions are thus far drawn, the results indicate that 

 wherever possible summer broadcasting on harrowed ground is the cheapest 

 method for obtaining a stand of Douglas fir in the front range of the Rocky 

 Mountains. However, since this method produced only about 1,600 trees per 

 acre when seed was used extravagantly, It is considered doubtful if the results 

 justify the expense. Studies of various methods of reforestation are to be con- 

 tinued on typical Douglas fir types. 



YelloiD pine habitat extension, W. D. Hayes (pp. 71-73). — The experiment 

 here reported was begun at the Fremont Station in 1911 to determine the possi- 

 bility of artificially extending the natural habitat of yellow pine downward into 

 the zone naturally occupied by relatively worthless species, such as piiion, 

 juniper, and chaparral oaks. 



From the results so far obtained it is concluded that sowing seed and plant- 

 ing any but the very hardiest stock on such a site are futile. Hardy, well- 

 developed transplants, preferably 3 years old, can be planted in the pinon type 

 with good chances of success. Although these results were secured during a 

 season very deficient in precipitation, it is recommended that yellow pine 

 planting should be confined to the higher and moister sites until further studies 

 have been conducted in the low dry sites. 



Douglas fir habitat extension, W. D. Hayes (pp. 74-77). — In this experiment 

 the author is attempting to determine whether Douglas fir can be successfully 

 grown at altitudes above its natural zone in a second quality Eugelmann spruce 

 site, where the original stand has been destroyed by fire. The results as de- 

 rived from 2 seasons' work indicate that Douglas fir can be successfully started 

 in the Eugelmann spruce-limber pine type. No conclusions are thus far drawn 

 as to method and season of planting, although it is felt that fall work, both in 

 seed sowing and in planting oi>erations, will be more successful at high altitudes 

 than at lower ones on account of the greater protection given the seeds and 

 plants by frozen ground and the blanket of snow throughout the trying winter 

 season. 



Brush disposal, G. A. Pearson (pp. 7S-81). — The object of this study was to 

 determine the effects upon reproduction of scattering the brush after logging in 

 a western yellow pine stand. The experiments, which were conducted during 

 the period 1909 to 1911, inclusive, indicate that a brush cover acts as a detri- 

 ment rather than a benefit to reproduction, at least during the first few years 

 after it has been scattered since it prevents the seed from reaching the soil. 

 It is suggested, however, that this disadvantage may be offset in later years by 

 the benefit which the decayed vegetable matter will have upon the soil. When 

 the brush is to be scattered over the stand, provision can be made for seeding 

 by leaving alternate bare spots or strips from 6 to 12 in. wide between the 

 branches. 



Methods of combating seed-destroying animals, G. A. Pearson (pp. 82-85). — 

 The experiments here described were conducted during 1909-1911, principally 

 in the Coconino and Gila National Forests, although observations were made 

 in other forests. Treating the seeds with red lead was found to be ineffective. 

 It seems probable that by distributing poisons very systematically over a sufii- 

 ciently large area rodents can be exterminated. This method does not appear 

 to be successful against birds. Screens proved effective against both birds and 

 rodents but are considered impractical at present on account of the cost. 



Influence of birds and rodents in reforestation, W. D. Hayes (pp. 86-92). — 

 From the results of the present experiment, which was conducted in an open 



