ECONOMIC WOODS OF THE UNITED STATES 109 



BuscH, P.: The Commercial Mahoganies. Tropenpflanzen, Vol. XV, 

 No. 9, 1911, pp. 479-493. 



^''Eucalyptus globulus: 



Betts, H.'S., and Smith, C. Stowell: Utilization of California Eucalypts. 

 Cir. 179, U. S. Forest Service, 1910. 



"Walnut: 



SuDWORTH, George B., and Mell, Clayton D. : Identification of North 

 American Wahiut Woods. Bui. 120, U. S. Forest Service, 1912. 



^''Carpinus caroliniana: 



Bailey, Irving W. : Notes on the Wood Structure of the Betulacese and 

 Fagacese. For. Quarterly, Vol. VIII, No. 2, 1910. 



'^Alnus oregona: 



Bailey, Irving W.: The Relation of the Leaf-Trace to the Formation 

 of Compound Rays in the Lower Dicotyledons. Annals of Botany, Vol. XXV, 

 Jan. 1911. 



Oaklbaf, Howard B.: The Wood-Using Industries of Oregon. Pub. of 

 Oregon Conservation Assn., 1911, pp. 38-39, 41. 



*^Maple: 



Holden, RrTH: Some Features in the Anatomv of the Sapindales. Bot. 

 Gaz., Vol. LIII, Jan. 1912, pp. 50-57. 



"Basswood: 



Record, Samuel J.: Tier-like Arrangement of the Elements of_Certain 

 Woods. Science, Vol. XXXIV, Jan. 12, 1912, pp. 75-77. 



'^Liriodendron tulipifera: 



Groppler, Robert: Vergleiohende Anatomie des Holzes der Magnoha- 

 ceen. Stuttgart, 1894. See also Bot. Centralblatt, Vol. LX, p. 373. 



*^Liquidambar styraciflua: 



Chittenden, Alfred K., and Hatt, W. Kendrick: The Red Gum. Bui. 

 58, U. S. Bu. Forestry, 1905. 



^"Betula papyrifera: 



Dana, S. T. : Paper Birch in the Northeast. Cir. 163, U. S. Forest Service, 

 1909. 



^'^Nyssa aquatica: 



HoLKOYD, H. B. : The UtiUzation of Tupelo. Cir. 40, U. S. Forest Service, 

 1906. 



SuDWORTH, George B., and Mell, Clayton D.: Distinguishing Char- 

 acteristics of North American Gumwoods. Bui. 103, U. S. Forest Service, 

 1911. 



VoN ScHRENCK, Hermann: Tupelo. Southern Lumberman, Anniversary 

 ed., 1907. 



^''Msculus octandra: 



Record, Samuel J.: Tier-like Arrangement of the Elements of Certain 

 Woods. Science, Vol. XXXIV, Jan. 12, 1912, pp. 75-77. 



"Salix nigra: 



Penhallow, D. p. : A Systematic Study of the SalicaceBe. Am. Naturalist, 

 Vol. XXXIX, No. 464, Aug. 1905. 



