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La Gorce, J. O. (3758) 



the fight at the timber line. Natl. Geogr. Mag. 42 (2) I 165-196. 1922. 



Lamb, W. H. (3757) 



the commercial range of hickory. Hardwood Rec. 53 (1) : 29-30, illus. 

 1922. 



— (3758) 



the commercial range of southern pine. Amer. Lumberman 2526: 48, 

 62-63, illus. 1923. 



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the distribution of walnut. Hardwood Rec. 47 (2) : 21-22. 1919. 



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map of commercially valuable forest begions of south amerioa. Geogr. 



Rev. 2 (4) : 263. 1916. 



(3761) 



maps and tables show clearly the distribution of coniferous woods in 



the western states. Amer. Lumberman 2342: 56-57. 1920. 



Lassen, J. A. (3762) 



WHY HARDWOODS DO NOT GROW NATURALLY IN THE WEST. Idaho Forester 4: 



28-32, illus. 1922. 



Lewis. F. J. (3763) 



forest line. Canad. Alpine Jour. 13 : 130-136, illus. 1923. 



Linehan, J. J. (3764) 



the territory of west Virginia spruce. Amer. Lumberman 1454 : 15. 1903. 



MacBride, T. H. . (3765) 



notes on forest distribution in iowa. Iowa Acad. Sci. Proc. 3: 96-101. 



1896. 



Macoun, John. (3766) 



the forests of Canada and their distribution. Roy. Soc. Canada, Proc. 

 and Trans. 12 (4) : 3-20. 1894. 



Meehan, Thomas. (3767) 



on the timber line of high mountains. Phila. Acad. Nat. Sci. Proc. 32 : 

 1-7. 1880. 



Merriam, C. H. (3768) 



NOTES ON THE DISTRIBUTION OF TREES AND SHRUBS IN THE DESERTS AND DESERT 

 RANGES OF SOUTHERN CALIFORNIA, SOUTHERN NEVADA, NORTHWESTERN ARI- 

 ZONA AND SOUTHWESTERN UTAH ; ALSO NOTES ON THE GEOGRAPHIC AND 

 VERTICAL DISTRIBUTION OF CACTUSES, YUCCAS, AND AGAVE. U. S. Dept. AgT., 



Bur. Biol. Survey, North Amer. Fauna 7: 285-343, 345-359, illus. 1893. 



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TiMBERLiNE. Natl. Geogr. Mag. 14 : 114-115. 1903. 



Merritt, M. L. (3770) 



TREE DISTRIBUTION IN NORTHERN AND CENTRAL ALASKA. AmeS Forester 15: 



69-74, illus. 1927. 



Miller, O. B. (3771) 



notes on the distribution of cape boxwood. Yale Univ. School Forestry, 

 Trop. Woods 6 : 14. 1926. 



Mills, E. A. (3772) 



the battle along the timberline. Country Life in Amer. 31 (2) : 25-28, 

 illus. 1916. 



Mohr, C. T. (3773) 



THE DISTRIBUTION OF SOME FOREST-TREES IN THE SOUTHERN STATES. Gard. 



and Forest 6: 372-373. 1893. 



(3774) 



ON THE DISTRIBUTION OF THE MORE IMPORTANT FOREST TREES IN THE GULF 



region. Amer. Jour. Forestry 1 : 78-88, 120-126, 179-184, 200-216. 1882-83. 



