(1401) Newport, C. A., and E. L. Amidon. 



1961. Lumber grade and value performance of young-growth ponderosa pine logs at 



the Challenge Experimental Forest in California. U.S. Forest Serv. Pacific 

 Southwest Forest and Range Exp. Sta. Tech. Pap. 55, 14 pp. 



(1402) Newton, Michael. 



1963. Some herbicide effects on potted Douglas-fir and ponderosa pine seedlings. 

 J. Forest. 61: 674-676. 



(1403) Nicholson, D. I. 



1951. Bud pruning of plantation pines. Australia Forest. 15: 56-61. 



(1404) Nienstaedt, Hans, Franklin C. Cech, Francois Mergen, and others. 



1958. Vegetative propagation in forest genetics research practice. J. Forest. 56: 

 826-839. (Other authors: Chi-Wu Wang and Bartislav Zak) 



(1405) Nighswander, J. E. 



1963. Eastern gall rust. Pp. 95-96. IN: Internationally Dangerous Forest Tree 

 Diseases. U.S. Dep. Agr. Misc. Pub. 939. 



(1406) Niner, G. C. 



1951 . Control of weeds with Dowfume MC-2 in woody stock production at the Albuquer- 

 que SCS nursery. U.S. Forest Serv. Tree Planters' Notes 4: 9-10. 



(1407) Northwest Forest Pest Action Committee. 



1955. An evaluation of forest insect and disease research needs in Oregon and Wash- 

 ington. Part II. Diseases. Northwest Forest Pest Action Comm., 30 pp. 



(1408) Offord, H. R. 



1961. Forest diseases in California- -problems and the research program of the Pacific 

 Southwest Station. U.S. Forest Serv. Pacific Southwest Forest and Range 

 Exp. Sta. Tech. Pap. 60, 29 pp. 



(1409) Olson, Alver J. 



1941. A root disease of Jeffrey and ponderosa pine reproduction. Phytopathology 31: 

 1063-1077. 



(1410) Olson, D. S. 



1932. Seed release from western white pine and ponderosa pine cones. J. Forest. 30: 

 748-749. 



(1411) 



(1412) 



1932. Germinative capacity of seed produced from young trees. J. Forest. 30: 871. 



(1413) 



1953. Preliminary tests on relative inflammability of logging slash by species in the 

 western white pine type. Univ. Ida. Forest, Wildlife and Range Exp. Sta. 

 Res. Note 5, 7 pp. 



1959. Identification of coniferous seedlings in the northern Rocky Mountains. Univ. 

 Ida. Forest, Wildlife and Range Exp. Sta. Res. Note 15, 4 pp. 



(1414) and H. Paul Benson. 



1948. Some results of artificial pruning of ponderosa pine. West Coast Lumberman 

 75(5): 94-96, 104. 



(1415) and George R. Fahnestock. 



1955. Logging slash: a study of the problem in Inland Empire forests. Univ. Ida. 

 Forest, Wildlife and Range Exp. Sta. Bull. 1, 48 pp. 



88 



