(1762) Show, S. B., and E. I. Kotok. 



1924. The role of fire in the California pine forests. U.S. Dep. Agr. Bull. 1294, 80 pp. 



(1763) and E. I. Kotok. 



1925. Fire and the forest. U.S. Dep. Agr. Circ. 358, 20 pp. 



(1764) and E. I. Kotok. 



1929. Cover type and fire control in the national forests of northern California. U.S. 



Dep. Agr. Bull. 1495, 36 pp. 



(1765) and E. I. Kotok. 



1930. The determination of hour control for adequate fire protection in the major cover 



types of California pine region. U.S. Dep. Agr. Tech. Bull. 209, 47 pp. 



(1766) Shreve, Forrest. 



1917. The density of stand and rate of growth of Arizona yellow pine as influenced by 

 climatic conditions. J. Forest. 15: 695-707. 



(1767) 



1917. The vegetation of a desert mountain range as conditioned by climatic factors. 



Carnegie Inst. Pub. 217. Review by G. A. Pearson, Soc. Amer. Forest. 

 Proc. 11: 455-463. 



(1768) Shupe, Dorothy G. 



1965. Arizona's forest area and timber volume. U.S. Forest Serv. Res. Note INT -33, 

 4 pp. 



(1769) Siggers, P. V. 



1944. The brown spot needle blight of pine seedlings. U.S. Dep. Agr. Tech. Bull. 

 870, 36 pp. 



(1770) Siggins, Howard W. 



1933. Distribution and rate of fall of conifer seeds . J. Agr. Res. 47: 119-128. 



(1771) Sikorowski, P. P., and L. F. Roth. 



1962. Elytroderma mycelium in the phloem of ponderosa pine. Phytopathology 52: 



332-336. 



(1772) Silen, Roy R., and Leonard R. Woike. 



1959. The Wind River Arboretum from 1912 to 1956. U.S. Forest Serv. Pacific 

 Northwest Forest and Range Exp. Sta. Res. Pap. 33, 50 pp. 



(1773) Simon, Charles L. 



1961. Effects of lifting date, cold storage, and grading on survival of some coniferous 

 nursery stock. J. Forest. 59: 449-450. 



(1774) Sims, I. H., and L. I. Barrett. 



1928. A study of form factors in western yellow pine plantations. Mich. Acad. Sci. 

 Pap. 9: 531-539. 



(1775) Sindel, Glen E. 



1963. The use of cattle to control deerbrush growth during pine plantation establish- 



ment. Soc. Amer. Forest. Proc. 1962: 71-72. 



(1776) Slabaugh, P. E. 



1965. A reappraisal of some silvicultural problems of Great Plains shelterbelts . Soc. 

 Amer. Forest. Proc. 1964: 23-27. 



110 



