LOGGING AND LUMBERING 539 



Gray, R. E. (10700) 



a monograph on logging by electricity. Lumber World Rev. 37 (9) : 67-69. 

 1919. 



Griffith, L. O. (10701) 



advantages and disadvantages of tractors in logging industry. Amer. 

 Lumberman 2360 : 88-89, illus. 1920. 



Harwood, H. H. (10702) 



motor truck in logging industry. Timberman 19 (6) : 74, 76, illus. 1918. 



Hearne, J. C. (10703) 



overhead yarding. Canada Lumberman 34 (21) : 48. 1914. 



Herring, W. E. (10704) 



use of electricity in logging and lumbering. Amer. Lumberman 2090: 

 48. 1915. 



Hewitt, G. P. (10705) 



successful truck operation in the lumber industry. Amer. Lumberman 

 2347: 68, illus. 1920. 



Hill, Bert. (10706) 



tractors and carriers: a comparison. Wash. [State] Univ. Forest Club 

 Quart. 1 (2) : 29-37. 1922. 



Hill, J. W. (10707) 



the caterpillar tractor in logging operations. Lumber World Rev. 37 (9) : 

 70-74. 1919. 



(10708) 



logging with caterpillar tractor. Timberman 19 (1) : 64A-64B, illus. 

 1917. 



Hilliakd, Richard. (10709) 



motor trucks in winter logging. West Coast Lumberman 34 (406) : 25, 36, 

 illus. 1918. 



Hodge, S. E., Thompson, J. R., and Mereen, J. D. (10710) 



logging with electricity under all conditions A successful experiment. 



Amer. Lumberman 1942 : 56-57. 1912. 



Hoffman, B. E. (10711) 



use of fuel oil in logging. Timberman 27 (5) : 48, 50<-51, illus. 1926. 



Horstkotte, E. H. (10712) 



electricity in logging and saw mills. Gen. Elect. Rev. 21 : 151-161, illus. 

 1918. 



Howell, J. H. (10713) 



caterpillar logging. Mont. Univ. Forestry Club, Forestry Kaimin. 1928: 

 24-26, illus. 1928. 



Humiston, W. D. (10714) 



gasoline tractor for pine logging. Timberman 20 (12) : 49. 1919. 



Jacoby, C. C. (10715) 



motor truck logging. Oreg. Agr. Col. Forest Club, Ann. Cruise 2 : 26-29, 

 illus. 1921. 



Johnson, B. A., Perry, H. W., Hill, J. W. Greenlaw, E. R., and Baker, S. W. 



(10716) 



THE MOTOR TRUCK, TRAILER AND TRACTOR PROBLEMS OF THE LUMBER TRADE. 



Lumber World Rev. 37 (2) : 29-33; (3) : 29-32; (4) : 21-24; (5) : 23-28; 

 (7) : 25-28; (9) : 70-74; (10) : 25-28; (12) : 25-29; 38 (3) : 27-31; (4) : 

 28-33; (7) : 42-47; 40 (8) : 25-26, illus. 1919-21. 



Klobucher, F. J. (10717) 



traction skidding studies in the inland empire. Timberman 23 (9) : 114- 

 118 illus. 1922, 



Knapp, F. M. (10718) 



motor truck logging methods. Wash. [State] Univ., Engin. Expt. Sta. Bull. 

 12, 49 pp., illus. 1921. 



