grams in Colorado. Jour. Forestry 52: 506- 

 510. 



WAHLENBERG, W. G. 1924. Stimulating the 

 growth of Engelmann spruce in the nursery. 

 U.S. Forest Serv., North. Rocky Mountain 

 Forest and Range Expt. Sta. Appl. Forestry 

 Note 45, 3 pp. 



WAHLENBERG, W. G. 1924. Reforestation by 

 seed sowing in the northern Rocky Mountains . 

 Jour. Agr. Res. 30: 637-641. 



WAHLENBERG, W. G. 1929. Relation of quan- 

 tity of seed sown and density of seedlings to 

 the development and survival of forest plant- 

 ing stock. Jour. Agr. Res. 38: 219-227. 



WAHLENBERG, W. G. 1930. Experiments in 

 the use of fertilizers in growing forest 

 planting material at the Savenac Nursery. 

 U.S. Dept. Agr.Gir. 125, 37 pp. 



Describes effect of heavy watering and ferti- 

 lizers on the germination of Engelmann spruce 

 seeds and the development of Engelmann spruce 

 seedlings in nursery soils. 



WAHLENBERG, W. G. 1930. Investigations in 

 weed control by zinc sulphate and other chem- 

 icals at the Savenac Forest Nursery. U.S. 

 Dept. Agr. Tech. Bui. 156, 35 pp. 



Germination and survival of seedlings are 

 reported following zinc sulphate treatment. 



WATTE, ROBERT STARR. 1962. The geographi- 

 cal distribution and control of destructive bark 

 beetles and defoliating insects in the conifer- 

 ous forests of Utah. Master's thesis. Univ. 

 Utah, Salt Lake City. 



WALTERS, J. (See Thomson and Walters. 1951) 



WATERMAN, W. G. 1925. Plant communities 

 of Alpine Park. Bot. Gaz. 80: 188-202. 



Includes community description and data on 

 succession and topographic distribution. 



WATSON, J. R. 1912. The plant geography of 

 north central New Mexico. Bot. Gaz. 54: 194- 

 217. 



Discusses distribution of Engelmann spruce. 



WEAVER, J. E. , and F. E. CLEMENTS. 1938. 

 IN: Plant Ecology, 2d ed. , 601 pp. The sub- 

 alpine forest, pp. 492-496. New York: 

 McGraw Hill Book Co. , Inc. 



WEIDMANN, R. H. (See Supplement, p. 37: 

 Haig, Davis, and Weidmann. 1941) 



WEIR, JAMES R. 1915. A new leaf and twig 

 disease of Picea engelmanni . Jour. Agr. Res. 

 4: 251-254 '. 



Includes report on Herpotrichia quinqueseptata. 



WEIR, JAMES R. 1915. New hosts for some 

 forest tree fungi. Phytopathology 5: 71-72. 



Herpotrichia nigra is abundant on Engelmann 

 spruce in Idaho; Polyporus lucidus grows on 

 roots of Engelmann spruce. 



WEIR, JAMES R. 1917. Sparassis radicata , an 

 undescribed fungus on the roots of conifers. 

 Phytopathology 7: 166-177. 



WEIR, JAMES R. 1918. New hosts for Razou - 

 mofskya laricis . Phytopathology 8: 62-63. 



WEIR, JAMES R. 1918. Notes on the altitudinal 

 range of forest fungi. Mycologia 10: 4-14. 



Lists several fungi occurring on Engelmann 

 spruce . 



WEIR, JAMES R. 1921. Polyporus dryadeus 

 (Pers.) Fr. on conifers in the Northwest. 

 Phytopathology 11: 99. 



Discusses heart rot on conifers. 



WEIR, JAMES R. , and ERNEST E. HUBERT. 

 1918. Forest disease surveys. U.S. Dept. 

 Agr. Bui. 658, 23 pp. 



Lists several diseases of Engelmann spruce. 



WHITE, KEITH L. 1960. Differential range use 

 by mule deer in the spruce -fir zone. North- 

 west Sci. 34: 118-126. 



Western Montana. 



WHITESIDE, J. M. , and V. M. CAROLIN, JR. 

 1961. Spruce budworm in the western United 

 States. U.S. Dept. Agr. Forest Pest Leaflet 

 53, 8 pp. 



WHITFIELD, C. J. 1933. The vegetation of 

 the Pike's Peak region. Ecol. Monog. 3: 75- 

 105. 



Community description. 



WHITFORD, H. N. , and ROLAND D. CRAIG. 

 1918. Forests of British Columbia. Canada 

 Comm. Conserv., Com. on Forests, Ottawa, 

 409 pp. 



General ecological information on Engelmann 

 spruce. 



35 



