Craighead, F. C, J. M. Miller, J. C. Evenden, and F. P. Keen. 



1931. Control work against bark beetles in western forests and an appraisal of its 

 results. J. Forest. 29: 1001-1018. 



Crosby, L. R. 



1929. Opening up a pine operation. Timberman 31(1): 154-156. 



Cumming, W. C, and F. I. Righter. 



1948. Methods used to control pollination of pines in the Sierra Nevada of California. 

 U.S. Dep. Agr. Circ. 792, 18 pp. 



Cummings, L. J. 



1941. The relationship of normal to average ponderosa pine stands of north Idaho. 

 J. Forest. 39: 47-48. 



and Paul D. Kemp. 



1940. Forest increment in north Idaho. U.S. Forest Serv. Northern Rocky Mountain 

 Forest and Range Exp. Sta. Forest Surv. Release 18, 74 pp. 



Cunningham, R. N. , S. V. Fullaway, Jr., and C. N. Whitney. 



1926. Montana Forest and timber handbook. Univ. Mont. Sch. Forest., 162 pp. 



Curry, John R., and Wallace L. Fons. 



1938. Rate of spread of surface fires in the ponderosa pine type of California. J. Agr, 

 Res. 57: 239-267. 



Curtis, James D. 



1948. Animals that eat ponderosa pine seed. J. Wildlife Manage. 12: 327-328. 



1950. Suggestions for techniques in reforestation in the Intermountain region. U.S. 



Forest Serv. Intermountain Forest and Range Exp. Sta. Res. Pap. 19, 3 pp. 



1950. Stocking of logged ponderosa pine land in central Idaho. U.S. Forest Serv. 

 Intermountain Forest and Range Exp. Sta. Res. Pap. 23, 15 pp. 



1952. Destruction of paper tree tags by squirrels. J. Forest. 50: 220-221. 



1952. Response to release of ponderosa pine in central Idaho. J. Forest. 50: 608-610. 



1955. A study of ponderosa pine production in central Idaho. U.S. Forest Serv. 

 Intermountain Forest and Range Exp. Sta. Misc. Pub. 4, 9 pp. 



1955. Effects of origin and storage method on the germinative capacity of ponderosa 

 pine seed. U.S. Forest Serv. Intermountain Forest and Range Exp. Sta. 

 Res. Note 26, 5 pp. 



1961. Silvicultural limitations of shallow soil. U.S. Forest Serv. Intermountain 

 Forest and Range Exp. Sta. Misc. Pub. 24, 4 pp. 



1961. Can ponderosa pine in brushfields be sprayed after planting? U.S. Forest 

 Serv. Intermountain Forest and Range Exp. Sta. Res. Note 84, 2 pp. 



1964. Roots of a ponderosa pine. U.S. Forest Serv. Res. Pap. INT-9, 10 pp. 



26 



