(584) Fowells, H. A. 



1953. Regeneration problems and research in California. U.S. Forest Serv. Calif. 

 Forest and Range Exp. Sta. Misc. Pap. 10, 4 pp. 



(585) 



1953. The effect of seed and stock sizes on survival and early growth of ponderosa and 

 Jeffrey pine. J. Forest. 51: 504-507. 



(586) andB. M. Kirk. 



1945. Availability of soil moisture to ponderosa pine. J. Forest. 43: 601-604. 



(587) and G. H. Schubert. 



1951. Recent direct seeding trials in the pine region of California. U.S. Forest Serv. 

 Calif. Forest and Range Exp. Sta. Forest Res. Note 78, 9 pp. 



(588) andG. H. Schubert. 



1951. Natural reproduction in certain cutover pine -fir stands of California. J. For- 

 est. 49: 192-196. 



(589) andG. H. Schubert. 



1953. Planting- stock storage in the California pine region. U.S. Forest Serv . Calif . 

 Forest and Range Exp. Sta. Tech. Pap. 3, 12 pp. 



(590) and G. H. Schubert. 



1955. Planting trials with transpiration retardants in California. U.S. Forest Serv. 



Tree Planters' Notes 20: 19-22. 



(591) andG. H. Schubert. 



1956. Seed crops of forest trees in the pine region of California. U.S. Dep. Agr. 



Tech. Bull. 1150, 48 pp. 



(592) and N. B. Stark. 



1965. Natural regeneration in relation to environment in the mixed conifer forest type 

 of California. U.S. Forest Serv. Res. Pap. PSW-24, 14 pp. 



(593) Franklin, Jerry F. 



1961. A guide to seedling identification for 25 conifers of the Pacific Northwest. U.S. 



Forest Serv. Pacific Northwest Forest and Range Exp. Sta. , 65 pp. 



(594) and Jack S. Rothacher. 



1962. Are your seedlings being buried? U.S. Forest Serv. Tree Planters' Notes 51: 7-9. 



(595) Franz, N. C. 



1963. Exploratory experiments on the possible use of radio-active waste materials in 



wood industries . Forest Prod. J. 13(3): 94-96. 



(596) Friedrich, C. Allan. 



1944. Seeding grass by airplane on western Montana's burned-over timberlands. U.S. 



Forest Serv. Northern Rocky Mountain Forest and Range Exp. Sta. Res. Note 

 52 , 5 pp. 



(597) Fritts, Harold C. 



1963. Computer programs for tree-ring research. Tree -Ring Bull. 25(3/4): 2-7. 



(598) , David G. Smith, Carl A. Budelsky, and John W. Cardis . 



1965. The variability of ring characteristics within trees as shown by a reanalysis of 

 four ponderosa pine. Tree-Ring Bull. 27(1/2): 3-18. 



37 



