WOOD TECHNOLOGY 665 



Newlin, J. A. (13174) 



SUGGESTIONS FOB THE NAILING OF BOXES, Wood BOX 3 (2) ! 6-7. 1921. AlSO 



pub. in Barrel and Box 24 (5) : 42-43, illus. 1919. 



(13175) 



unit stbesses in timbeb. Amer. Soc. Civ. Engin. Proc. 52: 1436-1443. 1926. 

 Also pub. in Amer. Soc. Civ. Engin. Trans. 91 : 400-407, illus. 1927. 



(13176) 



variation in weight and strength of timbeb. Amer. Lumberman 2123: 33. 

 1916. Also pub. in Lumber World Rev. 30 (2) : 25-27. 1916. 



— and Gahagan, J. M. (13177) 



tests of large timbeb columns and peesentation of the forest products 

 laboratory column formula. U. S. Dept. Agr. Tech. Bull. 167, 44 pp. 

 illus. 1930. 



and Johnson, R. P. A. (13178) 



BASIC GBADING RULES AND WORKING STBESSES FOR STRUCTUBAL TIMBEBS AS BEC- 

 OMMENDED BY THE DEPARTMENT OF AGBICULTURE. U. S. Dept. Agr., Dept. 



Circ 295, 23 pp., illus. 1923. 

 and Johnson, R. P. A. (13179) 



STRUCTURAL TIMBER : DEFECTS AND THEIR INFLUENCE ON STRENGTH. Amer. SOC. 



Testing Materials Proc. 24 (2) : 975-989, illu.5. 1924. 

 and Trayer, G. W. (13180) 



THE INFLUENCE OF THE FORM OF A WOODEN BEAM ON ITS STIFFNESS AND STBENGTH 



... U. S. Natl. Advisory Com. for Aeronautics Repts. 180, 181, 188, 3 v. 

 1924. 



and Trayer, G. W (13181) 



A METHOD OF CALCULATING THE ULTIMATE, STRENGTH OF CONTINUOUS BEAMS. 



U. S. Natl. Advisory Com. for Aeronautics. Rept. 347, 28 pp., illus. 1930. 



and Wilson, T. R. C. (13182) 



MECHANICAL PBOPEBTIES OF WOODS GBOWN IN THE UNITED STATES. U. S. Dept. 



Agr. Bull. 556, 47 pp., illus. 1917. 

 and Wilson, T. R. C. (13183) 



THE BELATION OF THE SHBINKAGE AND STBENGTH PBOPEBTIES OF WOOD TO ITS 



specific gbavity. U. S. Dept. Agr. Bull. 676, 35 pp., illus. 1919. 



New York Lumbeb Teade Association, Timber Test Committee. (13184) 



report . . . covering a series of tests on southern yellow pine and doug- 

 LAS fir timbers ... 12 pp., illus. New York. 1923. 



North, A. T. (13185) 



bending stbength of yellow-pine timbeb. Engin. Rec 68 (1) : 27-28. 1913. 



(13186) 



timbeb waste and lawful FIBER stresses. Amer. Lumberman 1986 : 55-56. 

 1913. 



(13187) 



unit stresses in timbeb. Engin. News 70 (9) : 426-427. 1913. 



Northern Hemlock and Hardwood Manufacturees' Association. (13188) 



a guide to the comparative properties of noetheen hardwoods ... 4 pp. 

 Oshkosh, Wis. 1926. 



Noyes, William. (13189) 



wood and forest. 309 pp., illus. Peoria, 111., Manual Arts Press. 1912. 



Olmsted, F. E. (13190) 



tests on the physical properties of timber. U. S. Dept. Agr. Yearbook 

 1902 : 533-538, illus. 1903. 



Osborn, F. A. (13191) 



physics and forestry. Wash [State] Univ. Forest Club Ann. 12: 41-43. 

 1924. 



Osgood, W. R. (13192) 



COMPEESSIVE STRESS ON WOOD SURFACES INCLINED TO THE GRAIN. Engin. NewS- 



Rec 100 (6) : 243-244, illus. 1928. 



