284 APPENDIX 



WOOD TECHNOLOGY AND DENDROLOGY 



BAILEY, L. H. "The Cultivated Conifers." New York, Macmillan Co., 1934. 

 BROWN, H. P., and PANSHIN, A. J. "Identification of the Commercial Timbers 



of the United States." New York, McGraw-Hill Book Co., 1934. 

 GARRETT, G. "The Mechanical Properties of Wood." New York, John Wiley & 



Sons, 1931. 

 HARLOW, W. M. "Twig Key to the Deciduous Woody Plants of the Eastern 



United States." Second edition. Syracuse, N. Y. New York State College 



of Forestry, 1935. 

 HARLOW, W. M. "Trees of the United States," Part I, Hardwoods; Part II, 



Softwoods. Third edition. Ann Arbor, Mich., Edwards Bros., 1934. 

 HOUGH, R. B. "Handbook of the Trees of the Northern States and Canada." 



Lowville, N. Y., published by the author, 1907. 

 RECORD, S. J. "Identification of Timbers of Temperate North America." New 



York, John Wiley & Sons, 1934. 

 RECORD, S. J., and MELL, C. D. "Timbers of Tropical America." New Haven, 



Yale Univ. Press, 1924. 



SARGENT, C. S. "Manual of the Trees of North America." Second edition. Bos- 

 ton, Houghton Mifflin & Co., 1926. 



PERIODICALS 



The following contain much valuable current information on forestry: 

 Forestry News Digest, American Tree Association, 1214 - 16th St., Washington, 



D. C. 

 American Forests, published monthly by the American Forestry Association, 1713 



K St., Washington, D. C. 

 Journal of Forestry, published monthly by the Society of American Foresters, 



Hill Bldg., Washington, D. C. 



American Lumberman, published bi-monthly, 431 S. Dearborn St., Chicago, 111. 

 Southern Lumberman, published bi-monthly, Presbyterian Bldg., Nashville, Tenn. 

 Timberman, Spalding Bldg., Portland, Oregon. 



West Coast Lumberman, published monthly, at 71 Columbia Bldg., Seattle, Wash. 

 Nature Magazine, published monthly by American Nature Assoc., 1214- 16th St., 



Washington, D. C. 



THE NATIONAL INDUSTRIAL RECOVERY ACT * THE LUMBER 

 CODE AND FORESTRY 



The most significant, noteworthy advance in the progress of private or indus- 

 trial forestry in the United States was the establishment of the lumber code and 



*This act was declared unconstitutional by the U. S. Supreme Court on 

 May 27, 1935. This brief description is appended because of historical interest 

 and the fact that many private owners of timber properties have voluntarity 

 continued to observe the conservation features of the code. On June 19, 1935, 

 the directors of the National Lumber Manufacturers Association urged members 

 of the lumber industry to continue the progress made in forest conservation 

 under the code 



