BATHEN, R. , and F. FROST. 1951. Forsok 

 med skjermplanting i fjellet. Tidsskr. Skogbr. 

 59: 390-394. 



Snowbreak planting in Norway. 



BATRA, L. R. 1959. A comparative morpho- 

 logical and physiological study of the species 

 of Dipodascus . Mycologia 51: 329-355. 



Dipodascus aggregatus in frass of ambrosia 

 beetle in Engelmann spruce. 



BEETLE, A. A. 1961. Range survey in Teton 

 County, Wyoming. Parti. Ecology of range 

 resources. Wyo. Agr. Expt. Sta. Bui. 376, 

 42 pp. 



Community description. 



BEHLE, WILLIAM H. 1955. The birds of the 

 Deep Creek Mountains of central western 

 Utah. Univ. Utah Biol. Ser. 11(4): 1-34. 



Describes the community and the distribution 

 of Engelmann spruce. 



BEHLE, WILLIAM H. , JOHN B. BUSHMAN, and 

 CLIFTON M. GREENHALGH. 1958. Birds 

 of the Kanab area and adjacent high plateaus 

 of southern Utah. Univ. Utah Biol. Ser. 11(7): 

 1-92. 



Community description; distribution of Engel- 

 mann spruce. 



BEID LE MAN, RICHARD G. 1957. Fire burn 

 succession studies in the northern Colorado 

 Rockies. Jour. Colo. -Wyo. Acad. Sci. 4(9): 



39. 



Succession following fire . 



BESSEY, CHARLES E. 1896. The conifers of 

 Pike's Peak region. Amer. Naturalist 30: 

 748-749. 



Community description. 



BETHEL, ELLSWORTH. 1925. The conifers 

 and "evergreens" of Colorado. Colo. Mag. 

 2(1): 1-23. 



Community description. 



BETHEL, ELLSWORTH. (See Rhoads et al. 

 1918) 



BETTS, HAROLD S. 1941. American woods. 

 Engelmann spruce, Picea engelmanni . U.S. 

 Dept. Agr., Forest Serv. 10 pp. 



BETTS, HAROLD S. 1945. Engelmann spruce. 

 U.S. Dept. Agr., Forest Serv., Amer. Woods 

 Ser. , 8 pp. 



BETTS, N. DeW., and A. L. HEIM. 1914. 

 Tests of Rocky Mountain woods for telephone 

 poles. U.S. Dept. Agr., Agr. Bui. 67, 28 pp. 



Value of pole timber of fire -killed trees; 

 distribution. 



BIENTJES , WILLEM. (See Allen and Bientjes . 

 1954) 



BILLINGS, W. D. 1957. Replacement of spruce 

 fir forest by alpine tundra as a result of fire. 

 Ecol. Soc. Amer. Bui. 38: 70. (Abstract.) 



Succession. 



BJARNASON, HAK ON. 1954. La reboisement 

 de l'Islande. (Reforestation of Iceland.) 

 Schweiz. Zeitschr. Forstw. 105(8): 450-459. 



BJARNASON, H. , and H. RAGNARSSON. 1958. 

 Vidurvb'xtur barrtrjaa a Islandi. Arsr. Skog- 

 roektarf. Islands 1958: 110-114. 



Growth of conifers in Iceland. 



BJARNASON, H. , and E. G. SAEMUNDSEN. 

 1949. Fraesofnun , saning og grodursetning. 

 Arsr. Skogrcektarf. Islands 1949: 53-79. 



Seed collection, sowing, and planting in 

 Iceland. 



BLACKFORD, J. L. 1944. Wards of the spruce: 

 Birds that haunt the wild, dark domain of the 

 spire-like Engelmanns. Amer. Forests 50: 

 156-157. 



Community description. 



BLACKMAN, M. W. 1940. A new species of 

 Xylechinus Chapius from Montana (Coleoptera 

 Scolytidae). Ent. Soc. Wash. Proc. 42(6): 

 123-125. 



A new bark beetle on Engelmann spruce . 



BLAKE, I. H. 1923. An ecological reconnais- 

 sance in the Medicine Bow mountains. Ecol. 

 Monog. 15: 207-247. 



Community description. 



BLOOMBERG, W. J. 1950. Fire and spruce. 

 Forestry Chron. 26: 157-161. 



Succession. 



4 



