WOOD TECHNOLOGY 663 



Markwardt, L. J. (13134) 



AIRCRAFT WOODS: THEIR PROPERTIES, SELECTION AND CHARACTERISTICS. U. S. 



Natl. Advisory Com. for Aeronautics Kept. 354, 34 pp., illus. 1930. 



(13135) 



COMPARATIVE STRENGTH PROPERTIES OF 164 WOODS FOR CROSS TIES. Cross Tie 



Bull. 11 (9) : 6, 8, 10, 12, 14. 1930. 



(13136) 



COMPARATIVE STRENGTH PROPERTIES OF WOODS GROWN IN THE UNITED STATES. 



U. S. Dept. Agr. Tech. Bull. 158, 38 pp., illus. 1930. 



(13137) 



compression failures as defects. Hardwood Rec. 39 (1) : 24-25, illus. 



1914. 



(13138) 



the density of wood as a guide to its properties. South. Lumberman 



1670: 51. 1927. 



(13139) 



MILLION POUND TESTING MACHINE FOR FOREST PRODUCTS LABORATORY. Enghl. 



News-Rec 86 (1) : 31-32, illus. 1921. 



(13140) 



NEW TOUGHNESS MACHINE IS AID IN WOOD SELECTIONS. Wood Working IndUS. 



2 (1) : 31-34, illus. 1926. 



(13141) 



slant driving of nails: does it pay? Packing and Shipping 56 (10) : 7-9, 



23, 25. 1930. 



and Blmendorf, A. (13142) 



mechanical test made on plywood. Hardwood Rec 47 (6) : 23-28. 1919. 



and Gahagan, J. M. (13143) 



effect of nail points on resistance to withdrawal from wood. Wood 

 Working Indus. 8 (4) : 24-25, 29, illus. 1930. 



and Gahagan, J. M. (13144) 



the grooved nail. Barrel and Box 34 (6) : 16-18. 1929. Also pub. in 



Wood Construct. 15 (7) : 8, 34. 1929; and Packing and Shipping 56 (1) : 

 12-14. 1929. 



and Gahagan, J. M. (13145) 



nail-holding power of various species of wood. Amer. Lumberman 2826: 

 58-59, illus. 1929. Also pub. in Barrel and Box 34 (5) : 16-17, illus. 

 1929 ; and South. Lumberman 1760 : 55-56, illus. 1929. 



and Gahagan, J. M. (13146) 



REPORT ON TESTS TO DETERMINE THE EFFECTS OF NAIL POINTS ON RESISTANCE TO 



withdrawal. Barrel and Box and Packages 35 (9) : 21-24, illus. 1930. 

 Also pub. in Packing and Shipping 57 (9) : 7-9. 1930; and Timberman 

 31 (12) : 107-108, 110. 1930. 



Hartley, J. F. (13147) 



THEORETICAL CALCULATION OF THE PRESSURE DISTRIBUTION ON THE BASAL 



section of a tree. Forestry 2(1): 69-72. 1928. 



Maxwell, Hu. (13148) 



colored woods of the united states. Hardwood Rec 42 (11) : 15-17, illus. 

 1917. 



(13149) 



the elasticity of wood. Hardwood Rec. 42 (8) : 15-17, illus. 1917. 



(13150) 



the strength of wood. Hardwood Rec. 42 (7) : 18-21, illus. 1917. 



(13151) 



value of weight in wood. Hardwood Rec. 42 (10) : 15-17, illus. 1917. 



Mead, Herbert. (13152) 



properties of Philippine mahogany. Hardwood Rec. 45 (10) : 33-34. 1918. 



Mell, C. D. (13153) 



balsa wood : its properties and uses. 4 pp. n. p. n. d. 



