AMMAN, GENE D. , and PAUL H. BALDWIN. 

 1960. A comparison for censusing wood- 

 peckers in spruce -fir forests of Colorado. 

 Ecology 41: 699-706. 



Discusses distribution of insects and control 

 of insects by woodpeckers. 



ANDERSON, I. V. 1954. Suitability of Rocky 

 Mountain woods for veneer and plywood. 

 Jour. Forestry 52: 587-591. 



Engelmann spruce is one of five major spe- 

 cies discussed. 



ANDERSON, I. V. 1956. Engelmann spruce, its 

 properties, uses, and production. U.S. For- 

 est Serv. , Intermountain Forest and Range 

 Expt. Sta. Res. Paper 39, 16 pp. 



Compares quality of Engelmann spruce 

 lumber with that of other lumber species. Dis- 

 cusses estimated yield and production. 



ANDERSON, I. V. 1956. Properties, uses and 

 production of Engelmann spruce. Forest 

 Prod. Jour. 6: 307-311. 



ANNAND, P. N. 1928. A contribution toward a 

 monograph of the Adelginae (Phylloxeridae) of 

 North America. Stanford Univ. Pub. Biol. 

 Sci. 6: 1-146. 



Plant lice on Engelmann spruce: Pineus boycei 

 n. sp. in Montana; Pineus engelmanni n. sp. in 

 Oregon. 



ARLIDGE, J. W. C. 1958. A preliminary clas - 

 sification and evaluation of Engelmann spruce - 

 alpine fir forest at Bolean Lake, B. C. 

 Forestry Chron. 34: 324-325. 



ARTHUR, JOSEPH CHARLES, and FRANK DUNN 

 KERN. 1906. North American species of 

 Peridermium. Torrey Bot. Club Bui. 33: 

 403-438. 



Several species of Peridermium on Engel- 

 mann spruce. 



ASHTON, RUTH E. 1929. Preliminary obser- 

 vations on revegetation of the Twinsisters 

 burn in Rocky Mountain National Park. Jour. 

 Colo.-Wyo. Acad. Sci. 1(2): 13. (Abstract.) 



Notes the invasion of a lodgepole pine forest 

 by Engelmann spruce. 



AYRES, H. B. 1899. Washington Forest Re- 

 serve (western part). U.S. Geol. Surv. Ann. 



Rpt. 19, 1897-98, Part V- Forest reserves: 

 283-313. 



Engelmann spruce is small and not abundant; 

 found at high altitudes. 



AYRES, H. B. 1900. The Flathead Forest Re- 

 serve. U.S. Geol. Surv. Ann. Rpt. 20, 1898- 

 99, Part V-Forest reserves: 245-316. 



AYRES, H. B. 1900. Lewis and Clark Forest 

 Reserve, Montana. U.S. Geol. Surv. Ann. 

 Rpt. 21, Part V-Forest reserves: 27-80. 



Community; Engelmann spruce is abundant. 



BAILEY, L. H. (Ed.) 1925. The cultivated 

 evergreens. New edition. 434 pp. New York: 

 MacmiDan. 



Distribution of Engelmann spruce in culti- 

 vation . 



BAILEY, L. H. 1933. The cultivated conifers 

 of North America. 404 pp. New York: 

 Macmillan . 



BAKER, FRANCIS E. (See Fleming, Baker, and 

 Koblitzky. 1937) 



BAKER, FREDERICK S. (See Korstian and 

 Baker. 1925) 



BAKER, FREDERICK S. 1949. A revised toler- 

 ance table. Jour. Forestry 47: 179-181. 



Lists Engelmann spruce as a "tolerant" spe- 

 cies on a five-part scale from "very tolerant" to 

 "very intolerant." 



BAKER, FREDERICK S., C. F. KORSTIAN, and 

 N. J. FETHEROLF. 1921. Snowshoe rabbits 

 and conifers in the Wasatch Mountains of Utah. 

 Ecology 2: 304-310. 



Engelmann spruce is subject to damage 

 during winter by rabbits . 



BALDWIN, PAUL H. 1960. Overwintering of 

 woodpeckers in bark beetle -infested spruce - 

 fir forests of Colorado. IN: Proc. XII Inter- 

 natl. Ornith. Cong., Helsinki, 1958, pp. 

 71-84. 



Engelmann spruce beetles and birds. 



BALDWIN, PAUL H. (See Amman and Baldwin. 

 1960) 



BARGER, ROLAND L. (See Mueller and Barger. 

 1963) 



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