KERN, FRANK DUNN. (See Arthur and Kern. 

 1906) 



KIERULF, T. 1958. Plantningene pa Horta. 

 Tidsskr. Skogbr. 66: 109-112. 



Discusses plantations in Norway. 



KIRKWOOC, J. E. 1918. The conifers of the 

 northern Rockies . U.S. Dept. Int., Bur. 

 Educ. Bui. 53, 61 pp. 



KIRKWOOD, J. E. 1922. Forest distribution in 

 northern Rocky Mountains. Mont. State Univ. 

 Bui. 247, Studies Ser. 2, 180 pp. Missoula, 

 Mont. 



Discusses distribution of Engelmann spruce. 



KIRKWOOD, J. E. 1930. Northern Rocky Moun- 

 tain trees and shrubs. 340 pp. Stanford Univ., 

 Calif.: Stanford Univ. Press. 



KLEIN, C. J. (See Allison and Klein. 1961) 



KNIGHT, F. B. 1957. The effects of wood- 

 peckers on populations of the Engelmann 

 spruce beetle. Jour. Colo.-Wyo. Acad. Sci. 

 4: 47-48. 



KNIGHT, F. B. 1958. Effects of woodpeckers 

 on populations of the Engelmann spruce 

 beetle. Jour. Econ. Ent. 51: 603-607. 



KNIGHT, F. B. 1960. Measurement of Engel- 

 mann spruce beetle populations. Ecology 41: 

 249-252. 



Methods of measuring beetle populations . 



KNIGHT, F. B. 1960. Sequential sampling of 

 Engelmann spruce beetle infestation in stand- 

 ing trees. U.S. Forest Serv. Rocky Mountain 

 Forest and Range Expt. Sta. Res. Note 47, 

 4 pp. 



Reports on Dendroctonus engelmanni . 



KNIGHT, F. B. 1961. Variations in the life 

 history of the Engelmann spruce beetle. Ent. 

 Soc. Amer. Ann. 54: 209-214. 



Descriptions of the life cycle of the Engel- 

 mann spruce beetle. 



KNIGHT, F. B. , W. F. McCAMBRIDGE, and 

 B. H. WILFORD. 1956. Estimating Engel- 

 mann spruce beetle infestations in the central 

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



18 



Mountain Forest and Range Expt. Sta. Paper 

 25, 12 pp. 



Outlines survey method. 



KNIGHT, F. B. (See Nagel, McComb, and 

 Knight. 1957) 



KNIGHT, H. A. W. 1958. Gibberellic acid 

 application to Engelmann spruce seedlings . 

 Brit. Columbia Forest Serv., Forest Res. 

 Rev. 1957-58: 34-35. 



KNOWLTON, G. F. 1930. Notes on Utah Lach- 

 nea (Aphididae) . Can. Ent. 62: 152-161. 



Reports on Lachnus found on Engelmann 

 spruce . 



KOBLITZKY, LOUIS. (See Fleming, Baker, and 

 Koblitzky. 1937) 



KORSTIAN, CLARENCE F. 1921. Effect of a 

 late spring frost upon vegetation in the 

 Wasatch Mountains of Utah. Ecology 2:47-52. 



Describes injury to Engelmann spruce seed- 

 ings in nursery and also to native trees due to 

 frost. 



KORSTIAN, CLARENCE F. 1921. Relation of 

 precipitation to height growth of forest tree 

 saplings. Utah Acad. Sci. Trans. 2:260-267. 



Discusses growth of leaves of Engelmann 

 spruce . 



KORSTIAN, CLARENCE F. 1923. Control of 

 snow molding in coniferous nursery stock. 

 Jour. Agr. Res. 24: 741-748. 



Reports on diseases in nursery stock. 



KORSTIAN, CLARENCE F. 1924. Density of 

 cell sap in relation to environmental condi- 

 tions in the Wasatch Mountains of Utah. Jour. 

 Agr. Res. 28: 845-907. 



Discusses osmotic pressure of cell sap under 

 different conditions, climatic data, and available 

 soil moisture data. 



KORSTIAN, CLARENCE F. 1925. Some eco- 

 logical effects of shading coniferous nursery 

 stock. Ecology 6: 48-51. 



Germination and survival of Engelmann 

 spruce in a nursery related to shading. 



KORSTIAN, CLARENCE F. , and F. S. BAKER. 

 1925. Forest planting in the Intermountain 

 region. U.S. Dept. Agr., Dept. Bui. 1264, 

 56 pp. 



