(1145) Maki, T. E. 



1940. Significance and applicability of seed maturity indices for ponderosa pine. 

 J. Forest. 38: 55-60. 



(1146) 



1940. Artificial seeding of tree species in the Intermountain Region: present status 

 and future possibilities . Pp. 25-37. IN: Experimental Direct Seeding by 

 the Forest Service (M. A. Huberman, Ed.). U.S. Forest Serv. (Wash., 

 D.C.). 



(1147) Mani, R., V. Ramanathan, and K. Venkataraman. 



1956. The colouring matters of ponderosa pine bark. II. A synthesis of pinoquercetin 



and pinomyricetin. J. Sci. & Ind. Res. (India) 15B: 490-495. 



(1148) Margolin, Louis. 



1914. Errors in estimating timber . Forest. Quart. 12: 167-176. 



(1149) Marr, John W. 



1961. Ecosystems of the east slope of the front range in Colorado. Univ. Colo. 

 Studies, Ser. in Biol. 8, 133 pp. 



(1150) Marshall, Joe T. , Jr. 



1957. Birds of pine-oak woodland in southern Arizona and adjacent Mexico. Pacific 



Coast Avifauna 32, 125 pp. 



(1151) Marshall, Robert. 



1931. An experimental study of the water relations of seedling conifers with special 

 reference to wilting. Ecol. Monogr. 1: 39-98. 



(1152) Martin, C. S. 



1935. An analysis of improved forest practice on western pine operations under the 



lumber code, with suggestions for permanent national action. J. Forest. 33 

 583-586. 



(1153) Martin, J. S. 



1958. Sulfate pulping of ponderosa pine thinnings. U.S. Forest Serv. Forest Prod. 



Lab. Rep. 1909. 



(1154) Mason, F. R. 



1915. Rules of thumb for volume determination. Forest. Quart. 13: 333-337. 



(1155) Massey, Calvin L. 



1960. DDT, a preventive control for the southwestern pine beetle. U.S. Forest Serv. 

 Rocky Mountain Forest and Range Exp. Sta. Res. Note 40, 1 p. 



(1156) 

 (1157) 



1961. Biology of the southwestern pine beetle, Dendroctonus barberi. Entomol. Soc, 

 Amer. Ann. 54: 354-359. 



1964. Two new species of the nematode genus Ektaphelenchus (Nematoda, Aphelen- 



choidae), parasites of barkbeetles in the southwestern United States. Wash. 

 Helminthol. Soc. Proc. 31: 37-40. 



(1158) , R. D. Chisholm, and N. D. Wygant. 



1953. Ethylene dibromide for control of Black Hills beetle. J. Econ. Entomol. 46: 

 601-604. 



(1159) Masson, Donald L. 



1962. Plants for geobotanical prospecting. Wash. State Inst. Tech. Circ. 1, 9 pp. 



72 



