Johnson, W. M. 



1942. The interception of rain and snow by a forest of young ponderosa pine. Nat. 

 Res. Counc. Amer. Geophys. Union Trans. 1942, Part II: 566-569. 



1945. Natural revegetation of abandoned crop land in the ponderosa pine zone of the 

 Pike's Peak region in Colorado. Ecology 26: 363-374. 



1953. Effect of grazing intensity upon vegetation and cattle gains on ponderosa pine- 

 bunchgrass ranges of the front range of Colorado. U.S. Dep. Agr. Circ. 

 929, 36 pp. 



1956. The effect of grazing intensity on plant composition, vigor and growth of pine- 

 bunchgrass ranges in central Colorado. Ecology 37: 790-798. 



1959. Grazing intensity trials on seeded ranges in the ponderosa pine zone of Colorado. 

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and A. C. Hull, Jr. 



1949. Range forage species for seeding in ponderosa pine areas. U.S. Forest Serv. 

 Rocky Mountain Forest and Range Exp. Sta. Res. Note 5, 3 pp. 



and A. C. Hull, Jr. 



1950. How to reseed parks and openings in the ponderosa pine zone in Colorado. U.S. 



Forest Serv. Rocky Mountain Forest and Range Exp. Sta., Sta. Pap. 3, 14 pp. 



and Elbert H. Reid. 



1958. Herbage utilization on pine -bunchgrass ranges of Colorado. J. Forest. 56: 



647-651. 



Johnston, I. M. 



1943. Plants of Coahuila, eastern Chihuahua and adjoining Zacatecas and Durango. [. 

 J. Arnold Arboretum 24: 306-339. 



Jokela, J. J., and Ralph W. Lorenz. 



1959. Mouse injury to the forest plantings in the Prairie region of Illinois. J. Forest. 



57: 21-25. 



Jones, D. L. , Frank Gaines, and R. E. Karper. 



1932. Trees and shrubs in northwest Texas. Tex. Agr. Exp. Sta. Bull. 447, 63 pp. 



Jones, G. Willard. 



1925. Forest nursery working practice at Savenac Nursery. J. Forest. 23: 635-644. 

 Josephson, H. R. 



1941. Factors affecting income from second-growth forests in the western Sierra 

 Nevada. Calif. Agr. Exp. Sta. Bull. 658, 72 pp. 



Kachin, T. 



1939. Crop tree thinning and pruning in ponderosa pine cutovers. U.S. Forest Serv. 

 Pacific Northwest Forest and Range Exp. Sta. Res. Note 27, 5 pp. 



1940. Ponderosa pine sapblng stand responds to thinning. U.S. Forest Serv. Pacific 

 Northwest Forest and Range Exp. Sta. Res. Note 31, 13 pp. 



Kallander, Harry R. 



1956. Controlled burning in ponderosa pine stands of the Fort Apache Indian Reserva- 

 tion in Arizona. Ariz. Cattlelog 11(12): 26-30. 



