LOGGING AND LUMBERING 627 



Hatch, C. F. (12449) 



manufacture and utilization of hickory. U. S. Dept. Agr., Forest Serv. 

 Circ. 187, 16 pp. 1911. 



Heck, J. F. (12450) 



species, value, and growth of trees. Berlin Mills Co. Ann. Conf. Woods 

 Dept. 1: 20-30. 1913. 



Holroyd, H. B. ( 12451 ) 



the utilization of tupelo. U. S. Dept. Agr., Forest Serv. Circ. 40, 16 pp., 

 ilius. 1906. 



Johnson, R. P. A., Kittredge, J., and Schmitz, H. C. (12452) 



aspen : availability, properties, and utilization. Minn. Univ. Agr. Expt. 

 Sta. Tech. Bull. 70, 72 pp., illus. 1930. 



Kendall, H. T. (12453) 



suggestions for the utilization of yellow pine. Lumber World Rev. 

 28 (8) : 29-32. 1915. 



Knapp, J. B. (12454) 



FIRE-KILLED DOUGLAS FIR: A STUDY OF ITS RATE OF DETERIORATION, USABILITY, 



and strength. U. S. Dept. Agr., Forest Serv. Bull. 112, 18 pp., illus. 

 1912. 



Lewis, R. G. (12455) 



the commercial importance of beech. Canada Lumberman 34 (6) : 34-35, 

 illus. 1914. 



(12456) 



the commercial importance of birch ; physical properties and industrial 



uses of the most important Canadian hardwood. Canada Lumberman 

 34 (1) : 30-32. 1914. 



(12457) 



commercial importance of douglas fir. Canada Lumberman 34 (14) : 34-35. 



1914. 



(12458) 



the commercial importance of poplar. Canada Lumberman 34 (4) : 36-38, 



illus. 1914. 



(12459) 



the commercial importance of spruce. Canada Lumberman 34 (8) : 36-37, 



illus. 1914. 



(12460) 



commercial importance of white pine. Canada Lumberman 34 (12) : 34-35. 



1914. 



Massachusetts State Forester. (12461) 



the chestnut bark disease and the chestnut market in massachu- 

 SETTS. 30 pp., illus. Boston. 1916- 



McCarthy, J. C. (12462) 



peace and war-time uses of walnut. Lumber Manfr. and Dealer 78 (2) : 

 32-58. 1926. 



Maxwell, Hu. (12463) 



commercial uses of sugar maple. Amer. Forestry 21: 1022-1030, illus. 

 1915. 



(12464) 



USES OF COMMERCIAL WOODS OF THE UNITED STATES. BEECH, BIRCHES, AND 



maples. U. S. Dept. Agr. Bull. 12, 56 pp. 1913. 



(12465) 



UTILIZATION OF OSAGE ORANGE. 14 pp. n. p. 1911. 



Mell, C. D. (12466) 



crabwood and its uses. Hardwood Rec. 34 (10) : 29. 1912. 



(12467) 



future of our southern gums. Paper Trade Jour. 53 (25) : 48. 1911. 



(12468i 



the importance of mesquite. Lumber 69 (921) : 11. 1922. 



