ECONOMIC WOODS OF THE UNITED STATES 113 



Buttrick, P. L. : Commercial Uses of Chestnut. Amer. For., 21 : 262 : 960- 

 967, Oct. 1915. 



Buttrick, P. L.: Chestnut as a Pulp Wood. Pulp and Paper Mag., Nov. 



I, 1915, pp. 554-5. 



Ashe, W. W.: Chestnut in Tennessee. Bui. 10, B, Tenn. Geol. Survey, 

 Nashville, 1912. 



Zon, Raphael: Chestnut in Southern Maryland. Bui. 53, U. S. Bur. For., 

 1904. 



Lavaille, J. B.: Le Chataignier, Paris, 1906. 



30 Oak: 



Sudworth, George B., and Mell, C. D.: The Identification of Important 

 North American Oak Woods. Bui. 102, U. S. Forest Service, 1911. 



Record, Samuel J.: An Easy Identification of the Oaks. Hardwood 

 Record, Dec. 25, 1914, p. 23. 



Ross, A. H. D.: The Commercial Importance of Oak. Can. Lumberman 

 and Woodworker, 35: 17: 28-30, Sept. 1, 1915. 



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

 and Fagaceae. For. Quarterly, 8: 2: 178-190, June 1910. 



Bailey, Irving W. : On the Origin of the Broad Ray in Quercus. Bot. Gaz., 

 49:3:161-167, Mch. 1910. 



Bailey, Irving W.: Reversionary Characters of Traumatic Oak Woods. 

 Bot. Gaz., 50: 5: 374-380, Nov. 1910. 



Groom, Percy: The Evolution of the Annual Ring and Medullary Rays of 

 Quercus. Annals of Botany, 25: 983-1004, Oct. 1911. 



Abromeit, Johannes: Ueber die Anatomie des Eichenholzes. Berlin, 

 1884. 



31 Quercus alba: 



Greeley, W. B., and Ashe, W. W.: White Oak in the Southern Appala- 

 chians. Cir. 105, U. S. Forest Service, 1907. 



Langdon, LaDema M.: The Ray System of Quercus alba. Bot. Gaz., 

 65:4:313-323, Apr. 1918. 



Detwiler, Samuel B. : The American White Oak. Amer. For., 22: 265 : 3- 



II, Jan. 1916. 



32 Quercus prinus: 



Foster, H. D., and Ashe, W. W.: Chestnut Oak in the Southern Appa- 

 lachians. Cir. 135, U. S. Forest Service, 1906. 



"Hib: 



Brush, W. D.: Utilization of Elm. Bui. No. 683, U. S. Dept. Agr., 1918. 



Record, Samuel J.: The Wood of the Elms. Barrel and Box, Nov. 10, 

 1912, p. 33. 



^Ulmus americana: 



Detwiler, Samuel B.: The American Elm. Amer. For., 22: 269: 259- 

 267, May 1916. 



^Ulmus racemosa: 



Frothingham, E. H.: Rock Elm. Journ. Forestry, 16: 7: 834-836, Nov.; 

 16: 8: 950, Dec. 1918. 



