BARNES, G. H. 1937. The development of 

 uneven-aged stands of Engelmann spruce and 

 probable development of residual stands after 

 logging. Forestry Chron. 13: 417-457. 



BARR, PERCY MUNSON. 1930. The effect of 

 soil moisture on the establishment of spruce 

 reproduction in British Columbia. Yale Univ. 

 School of Forestry Bui. 26, 77 pp. 



BARROWS, J. S. 1951. Forest fires in the 

 northern Rocky Mountains. U.S. Forest 

 Serv., North. Rocky Mountain Forest and 

 Range Expt. Sta. Paper 28, 251 pp. 



BARROWS, J. S. 1951. Fire behavior in north- 

 ern Rocky Mountain forests. U.S. Forest 

 Serv., North. Rocky Mountain Forest and 

 Range Expt. Sta. Paper 29, 103 pp. 



Table A- 5 analyzes rate of spread of fires in 

 subalpine fir and Engelmann spruce forests. 



BARTON, G. M., and J. A. F. GARDNER. 1957. 

 A comparison of the heartwood extractives of 

 Picea glauca and Picea engelmanni. Forestry 

 Chron. 33: 136- 138"! 



BATES, CARLOS G. 1911. Forests and stream- 

 flow. Soc. Amer. Foresters Proc. 6(1): 53-63. 



Distribution of Engelmann spruce. 



BATES, CARLOS G. 1912. Silvicultural sys- 

 tems of management for central Rocky 

 Mountain Forests. Soc. Amer. Foresters 

 Proc. 7: 106-116. 



Discusses management of forests containing 

 Engelmann spruce. 



BATES, CARLOS G. 1917. Forest succession 

 in the central Rocky Mountains. Jour. For- 

 estry 15: 587-592. 



Discusses place of Engelmann spruce in suc- 

 cession in Rocky Mountain forests. 



BATES, CARLOS G. 1917. The role of light in 

 natural and artificial reforestation. Jour. 

 Forestry 15: 233-239. 



Compares minimum requirements of light for 

 sustained growth of yellow pine , lodgepole pine , 

 Douglas -fir, and Engelmann spruce. 



BATES, CARLOS G. 1923. Physiological re- 

 quirements of Rocky Mountain trees. Jour. 

 Agr. Res. 24: 97-164. 



Physiology of Engelmann spruce and associ- 

 ated species. 



BATES, CARLOS G. 1923. The transect of a 

 mountain valley. Ecology 4: 54-62. 



Discusses succession in Colorado and ana- 

 lyzes topographic distribution of Engelmann 

 spruce; includes data on evaporation, soil tem- 

 perature, and soil moisture. 



BATES, CARLOS G. 1924. Forest types in the 

 central Rocky Mountains as affected by 

 climate and soil. U.S. Dept. Agr. Dept. Bui. 

 1233, 152 pp. 



Discusses community, succession, and dis- 

 tribution. 



BATES, CARLOS G. 1925. A key to the identi- 

 fication of some coniferous seedlings. Jour. 

 Forestry 23: 278-281. 



Seedling morphology. 



BATES, CARLOS G. 1925. The relative light 

 requirements of some coniferous seedlings. 

 Jour. Forestry 23: 869-879. 



Discusses requirements of eight coniferous 

 species including Engelmann spruce; gives seed 

 weights of several species. 



BATES, CARLOS G. 1926. What shall we do 

 with Engelmann spruce? Colorado Forester 

 1926: 21-25. 



BATES, CARLOS G. , N. B. NOTESTEIN, and 

 PETER KEPLINGER. 1914. Climatic charac- 

 teristics of forest types in the central Rocky 

 Mountains. Soc. Amer. Foresters Proc. 9: 

 78-94. 



Colorado . 



BATES, CARLOS G. , and JACOB ROESER, JR. 

 1924. Relative resistance of tree seedlings 

 to excessive heat. U.S. Dept. Agr. Dept. 

 Bui. 1263, 16 pp. 



Compares Engelmann spruce seedlings with 

 those of other conifers for heat resistance with- 

 out the drought factor. 



BATES, CARLOS G. , and JACOB ROESER, JR. 

 1928. Light intensities required for growth 

 of coniferous seedlings. Amer. Jour. Bot. 

 15: 185-194. 



Physiology of Engelmann spruce. 



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