122 ECONOMIC WOODS OF THE UNITED STATES 



Sargent, Chas. S.: Report on the Forests of North America (exclusive of 

 Mexico). Vol. 9, Tenth Census, Washington, D. C, 1884. 



Sargent, Chas. S.: The Woods of the United States, with an Account of 

 the Structure, Qualities and Uses ( Jesup Collection). New York, D. Appleton 

 & Co., 18S5. 



Sargent, Chas. S.: The Silva of North America: A Description of the 

 Trees which Grow Naturally in North America, exclusive of Mexico. Vols. 

 1-14. Boston and New York, Houghton Mifflin Co., 1891-1902. 



Sargent, Chas. S.: Manual of the Trees of North America (exclusive of 

 Mexico). Boston and New York, Houghton Mifflin Co., 1905. 



Shinn, Charles H. : Economic Possibilities of Pinm sabiniana. Proc. Soc. 

 Am. Foresters, 6: 1: 68-77, 1911. 



Snow, Charles H.: The Principal Species of Wood (2d ed.). New York, 

 John 'Wiley & Sons, Inc., 1908. 



Snow, Charles H.: Wood and Other Organic Structural Materials. New 

 York, McGraw-Hill Book Co., 1917. 



Southern Yellow Pine Timbers. Including Definition of the New 

 "Density" Rule. Adopted and copyrighted by the American Society for 

 Testing Materials. Approved and adopted by the Southern Pine Association 

 of New Orleans, La., Nov. 1915. 



Sterrett, W. D.: Scrub Pine. Bui. 94, U. S. Forest Service, Washington, 

 D. C, 1911. 



Sudworth, George B.: Forest Trees of the Pacific Slope. U. S. Forest 

 Service, Washington, D. C, 1908. 



Sudworth, George B.: Miscellaneous Conifers of the Rocky Mountain 

 Region. Bui. No. 680, U. S. Dept. Agr., Washington, D. C, 1918. 



Sudworth, George B.: The Pine Trees of the Rocky Mountain Region. 

 Bui. No. 460, U. S. Dept. Agr., Washington, D. C, 1917. 



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

 Important North American Oak Woods, based on a Study of the Secondary 

 Wood. Bui. 102, U. S. Forest Service, Washington, D. G, 1911. 



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

 acteristics of North American Gumwoods, based on the Anatomy of the 

 Secondary Wood. Bui. 103, U. S. Forest Service, Washington, D. C, 1911. 



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

 American Walnut Woods. Hardwood Record, Chicago, Sept. 10 and 25, 

 1914. 



Thelen, Rolf: The Structural Timbers of the Pacific Coast. Proc. Am. 

 Soc. Test Mat., 8: 558-567, 1908. 



Zon, Raphael: Balsam Fir. Bui. No. 55, U. S. Dept. Agr., Washington, 

 D. C, 1914. 



2. Uses of Woods; Wood-using Industries 



Armstrong, Andrew K.: Wood-using Industries of California. Bui. No. 

 3, Cal. State Board of Forestry, Sacramento, 1912. 



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

 Forest Service, Washington, D. C, 1909. 



