WOOD TECHNOLOGY 671 



Trautwine, J. O. (13298) 



SHEARING STRENGTH OF SOME AMERICAN WOODS J TESTS OF WOODEN PINS OF SMALL 



diameter. Jour. Franklin Inst. 109' : 105-106, illus. 1880. 



Trayer, G. W. (13290) 



tests of frame wall construction. Engin. News-Rec. 103 (17) : 656-657, 

 illus. 1929. 



, and March, H. W. (13300) 



THE TORSION OF MEMBERS HAVING SECTIONS COMMON IN AIRCRAFT CONSTRUCTION. 



U- S. Natl. Advisory Com. for Aeronautics Rept. 334, 49 pp., illus. 1930. 

 Uderitz, G. W. (13301) 



WHAT EVERY WOOD WORKER SHOULD KNOW ABOUT WOOD : WOOD, ITS GROWTH AND 



structure, pts. i-i2. Wood working Indus. 3 (1) : 17-19; (3) : 18-20; 

 (4) : 17-19; (5) : 16-18; (6) : 13-14; (7) : 14-15, 26; (8) : 16-18; (9) : 

 14-15; (10): 13-16; (11): 18-19; (12): 24-26; 4 (1): 20-21, 28, illus. 

 1927-28. 



United States Forest Service. (13302) 



instructions for the collection of test' pieces of pines for timber investiga- 

 TIONS. 4 pp. Washington, D. C. n. d. 



(13303) 



MECHANICAL PROPERTIES OF WOODS GROWN IN THE UNITED STATES : PRELIMINARY 

 SUMMARY OF TESTS ON SMALL, CLEAR, GREEN SPECIMENS OF FORTY-NINE SPECIES 



of wood. U. S. Dept. Agr., Forest Serv. Cire. 213, 4 pp., illus. 1913. 



(13304) 



SUMMARY REPORT ON DRIVING TESTS ON TREE NAILS AT THE YARD OF THE AMERICAN 



ship-building company, Brunswick, ga. 31 pp., illus. Washington, D. C. 

 1918. 



(13305) 



timber tests. 15 pp. Washington, D. C. n. d. 



United States Bureau of Foreign and Domestic Commerce. (13306) 



American douglas fir and its uses. U. S. Dept. Com., Bur. Foreign and 

 Doni. Com., Trade Prom. Ser. 87, 60 pp., illus. 1929. 



United States Bureau of Standards. (13307) 



report on crossbend tests of processed cypress and sour gum. Lumber 

 World Rev. 36 (12) : 56-58. 1918. 



United States National Advisory Committee for Aeronautics, (13308) 



nomenclature for aeronautics. U. S. Natl. Advisory Com. for Aeronautics 

 Rept. 240, 77 pp., illus. 1926. 



United States War Department, Air Service. (13309) 



properties of woods at i o per cent moisture. Air Serv. Inform. Circ, v. 1, 

 no. 53, 6 pp., illus. 1920'. 



Walton, L. W. (13310) 



THE HOLDING POWER OF SCREWS IN PLYWOOD VS. SOLID WOOD. Wood Working 



Indus. 3 (11) : 11-12, 19, 30', illus. 1927. 



Weiss, H. F. (13311) 



the protection of ties from mechanical destruction. Amer. Wood Pre- 

 servers' Assoc. Proc. 10: 249-260. 1914. 



Wellington, A. M. (13312) 



TESTS OF TRANSVERSE STRENGTH AND RESISTANCE TO SPIKE OF VARIOUS WOODS. 



Railroad Gaz. 12 : 668-669. 1880. 

 Whitaker, E. S. (13313) 



EXPERIMENTAL INVESTIGATIONS ON BIRCH AND OAK. Bot. Gaz. 71 : 220-235, 



illus. 1921. 

 Williams, W. D. (13314) 



PHYSICAL PROPERTIES OF LIGNUM-VITAE AND ITS SUBSTITUTES. Raw Material 



4 (8) : 290-292. 1921. 



Wilson, T. R. C. (13315) 



effect of creosote on strength of fir timber. Tiinberinan 31 (8) : 50-56, 

 illus. 1980, 



