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1923. Pine beetle control in northern California. Timberman 24(8): 38-39. 



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1927. The relation of highway slash to the infestations by the western pine beetle in 

 standing timber . U.S. Dep. Agr. Tech. Bull. 3, 10 pp. 



1929. The pondora moth, a periodic pest of the western pine forests. U.S. Dep. Agr. 

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[1450) Patterson, J. W. 

 1930. Milling beetle -killed pine timber. Timberman 31(3): 162-172. 



[1451) Patton, E. A. 



1953. Ponderosa pine woodwork residues for dry formed particle board. Forest Prod. 

 Res. Soc. J. 3: 146-147. 



[1452) Paul, Benson H. 

 1955. Resin distribution in second -growth ponderosa pine. U.S. Forest Serv. Forest 



Prod. Lab. Rep. 2046, 6 pp. 



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1956. Changes in spiral grain direction in ponderosa pine. U.S. Forest Serv. Forest 

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1957. Lengthwise shrinkage of ponderosa pine. Forest Prod. J. 7: 408-410. 



1962. Properties and uses of western pines. Woodworking Dig. 64: 43-45. 



1963. The application of silviculture in controlling the specific gravity of wood. 

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[1457) and George Meagher. 

 1949. Growth -quality study of ponderosa pine. West Coast Lumberman 76(6): 82, 84, 



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[1458) Paul, Ted J. , and Gary Todd. 

 1965. Ponderosa pine root regeneration from two forest nurseries . Calif. Div. For- 

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[1459) Paulsen, W. G. 

 1965. Simazine weed control. U.S. Forest Serv. Tree Planters' Notes 73: 1-2. 



[1460) Pearce, W.J. 



1920. The relation of insect losses to sustained forest yield. J. Forest. 18: 406-411. 



[1461) Pearson, G. A. 

 1910. Marking yellow pine for cutting in the Southwest. Univ. Nebr. Forest. Club 



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1910. Reproduction of western yellow pine in the Southwest. U.S. Dep. Agr. Forest 

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1912. The influence of age and condition of the tree upon seed production in western 

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1913. Planting western yellow pine, Fort Valley Experiment Station. U.S. Dep. Agr. 

 Rev. Forest Serv. Invest. 2: 61-65. 



91 



