110 ECONOMIC WOODS OF THE UNITED STATES 



g Southern Pines: 



FERNOW, B. E. : Southern Pine: Mechanical and Physical Properties. Cir. 

 12, U. S. Div. Forestry, 1896. 



MOHB, CHARLES, AND ROTH, FILIBERT: The Timber Pines of the Southern 

 United States, together with a Discussion of the Structure of their Wood. 

 Bui. 13 (rev. ed.), U. S. Div. Forestry, 1897. 



BETTS, H. S.: Properties and Uses of the Southern Pines. Cir. 164, U. S. 

 Forest Service, 1909. 



RECORD, SAMUEL J.: Southern Yellow Pine for Structural Purposes. 

 American Architect, Apr. 11, 1917, pp. 223-228. 



l Pinus caribcea: 



MATTOON, WILBUR R.: Some Characteristics of Slash Pine. For. Quar- 

 terly, 14: 4: 578-588, Dec. 1916. 



MATTOON, WILBUR R.: The Slash Pine. Amer. For., 23:279:158-160^ 

 Mch. 1917. 



ll Pinus palustris: 



KOEHLER, ARTHUR: A Visual Method of Distinguishing Longleaf Pine. 

 Amer. Lumberman, Sept. 11, 1915, pp. 34-35. 



FERNOW, B. E.: Timber Physics. Part II.: Results of Investigations on 

 Longleaf Pine. Bui. 8, U. S. Div. Forestry, 1893. 



BITTING, KATHERINE G. : The Histological Difference between Pinus tceda 

 and Pinus palustris. Proc. Ind. Acad. Sci., Indianapolis, Ind., 1908, pp. 127- 

 129. 



BUTTRICK, P. L.: Commercial Uses of Longleaf Pine. Amer. For., 

 21:261:896-908, Sept. 1915. 



l2 Pinus tceda: 



ASHE, W. W.: Loblolly or North Carolina Pine. Bui. 24, N. C. Geol. and 

 Econ. Survey, 1915. 



STERRETT, W. [ D. : Forest Management of Loblolly Pine in Delaware, 

 Maryland, and Virginia. Bui. 11, U. S. Forest Service, 1914. 



ZON, RAPHAEL: Loblolly Pine in Eastern Texas. Bui. 64, U. S. Forest 

 Service, 1905. 



HATT, W. KENDRICK: Second Progress Report on the Strength of Structural 

 Timber. Cir. 115, U. S. Forest Service, 1907. 



13 Pinus echinata: 



MATTOON, WILBUR R.: Shortleaf Pine: Its Economic Importance and 

 Forest Management. Bui. 308, U. S. Forest Service, 1915. 



MATTOON, WILBUR R.: Life History of Shortleaf Pine. Bui. 244, U. S. 

 Forest Service, 1915. 



DETWILER, SAMUEL B.: Shortleaf Pine. Amer. For., 22:273:513-520* 

 Sept. 1916. 



14 Pseudotsuga: 



CLINE, MCGARVEY, AND KNAPP, J. B.: Properties and Uses of Douglas Fir. 

 Bui. 88, U. S. Forest Service, 1911. 



DETWILER, SAMUEL B.: Douglas Fir. Amer. For., 22: 266: 67-75, Feb. 

 1916. 



FROTHINGHAM, E. H. : Douglas Fir: A Study of the Pacific Coast and Rocky 

 Mountain Forms. Cir. 150, U. S. Forest Service, 1909. 



