Amanita pantherina (D.C. ex Fries) Seer, 

 associated with Engelmann spruce on the west 

 slope of the Cascade Range in southern Wash- 

 ington; Russula delica Fries associated with 

 Engelmann spruce in Oregon and Washington. 



TRAPPE, JAMES M. (See Franklin and Trappe. 

 1963) 



TROXELL, H. E. 1954. The use of Rocky 

 Mountain species for pulping. Jour. Forestry 

 52: 583-586. 



Discusses distribution of Engelmann spruce. 



TWOMEY, ARTHUR C. 1942. The birds of the 

 Uintah Basin, Utah. Carnegie Museum (Pitts- 

 burgh) Annals 28: 341-490. 



Discusses distribution of Engelmann spruce 

 and birds associated with this species. 



U.S. AGRICULTURAL RESEARCH ADMINIS- 

 TRATION. 1946. Report of the Chief of the 

 Bureau of Entomology and Plant Quarantine, 

 63 pp. 



Outbreak of Engelmann spruce beetle in 

 Colorado . 



U.S. DEPT. AGRICULTURE. 1960. Index of 

 plant diseases in the United States. U.S. 

 Dept. Agr., Agr. Res. Serv., Crops Res. 

 Div., Agr. Handb. 165, 531 pp. 



U.S. DEPT. AGRICULTURE. 1961. Seeds, 

 The Yearbook of Agriculture, 1961: 556, 560. 



Seed characteristics are reported. 



U.S. FOREST SERVICE. No date. How to know 

 the trees of the Intermountain region. 20 pp. 

 U.S. Dept. Agr. , Forest Service Region 4, 

 Ogden, Utah. 



Includes description and distribution of 

 Engelmann spruce. 



U.S. FOREST SERVICE. 1907. Engelmann 

 spruce. Silvical Leaflet 3, 4 pp. 



U.S. FOREST SERVICE. 1913. Mechanical 

 properties of woods grown in the United 

 States. U.S. Dept. Agr., Forest Serv. Cir. 

 213, 4 pp. 



Covers tests made on small, clear, green 

 specimens of 49 species including Engelmann 

 spruce. 



U.S. FOREST SERVICE. 1928. The National 

 Forests of Colorado. U.S. Dept. Agr. Misc. 

 Pub. 18, 38 pp. 



U.S. FOREST SERVICE. 1930. Forest and 

 range resources of Utah: their protection and 

 use. U.S. Dept. Agr. Misc. Pub. 90, 101 pp. 



Gives a general description of Engelmann 

 spruce and discusses its distribution in Utah. 



U.S. FOREST SERVICE. 1943. Silviculture of 

 the spruce -fir type. Rocky Mountain Forest 

 and Range Expt. Sta. Ann. Rpt. 1943: 37-43. 



U.S. FOREST SERVICE. 1946. Studies in biol- 

 ogy and control of Engelmann spruce bark 

 beetle. Rocky Mountain Forest and Range 

 Expt. Sta. Ann. Rpt.: 65-66. 



U.S. FOREST SERVICE. 1948. Reproduction 

 and stand -condition survey in beetle -killed 

 Engelmann spruce stands . Rocky Mountain 

 Forest and Range Expt. Sta. Ann. Rpt. 1948: 

 29-35. 



U.S. FOREST SERVICE. 1948. Woody-plant 

 seed manual. U.S. Dept. Agr. Misc. Pub. 

 654, 416 pp. 



U.S. FOREST SERVICE. 1952. A guide for the 

 selection of superior trees in the northern 

 Rocky Mountains. U.S. Forest Serv., Forest 

 Genetics Steering Committee, North. Rocky 

 Mountain Forest and Range Expt. Sta. Misc. 

 Pub. 6, 7 pp. 



U.S. FOREST SERVICE. 1954. Seedbed prep- 

 aration for natural regeneration of western 

 larch. Intermountain Forest and Range Expt. 

 Sta. Ann. Rpt.: 13-14. 



Engelmann spruce is included. 



U.S. FOREST SERVICE. 1956. Entomological 

 phases of the 1955 Montana spruce buriworm 

 control project. Intermountain Forest and 

 Range Expt. Sta. Misc. Pub. 9, 12 pp. 



Reports all phases of control operations. 



U.S. FOREST SERVICE. 1956. Pole Might of 

 western white pine . Intermountain Forest 

 and Range Expt. Sta. Ann. Rpt.: 23-25. 



U.S. FOREST SERVICE. 1956. Shade is bene- 

 ficial to Engelmann spruce initial seedling 

 survival. Intermountain Forest and Range 

 Expt. Sta. Ann. Rpt.: 6-7. 



33 



