462 APPENDIX 
Stewart, D. E.: Combination Crane and Shovel in Road Work. The 
Timberman, May, 1920, p. 37. 
Inclines. 
Clark, A. W. : Overcoming Grades too Steep for Geared Locomotives. 
The Timberman, Portland, Oregon, August, 1909, p. 33. 
Jackson, Thos. B.: Log Lowering Systems in the Inland Empire. The 
Timberman, July, 1923, pp. 3r>-37. 
MacLafferty, T. H.: Handling Logging Trains on Excessive Grades. 
The Timberman, July, 1911, p. 44. 
Potter, E. O.: Utilization of the Cable Locomotive. The Timberman, 
August, 1909, p. 34. 
Wentworth, G. K. : Lowering Logs on a 3200-foot Incline. The Timber- 
man, August, 1909, p. 34. 
Williams, Asa S.: Logging by Steam. Forestry Quarterly, Vol. VI, pp. 
19-21. 
Loading and unloading log cars. 
Anonymous: Swinging "Gill-poke" Unloader. The Timberman, Port- 
land, Oregon, Oct., 1909, p. 23. 
Evenson, O. J.: An Improved Log-loading System. The Timberman, 
August, 1912, p. 52. 
Gibbons, W. H.: Logging in the Douglas Fir Region. U. S. Dept. of 
Agriculture, Bui. 711. Washington, 1918, pp. 229-238. 
O'GoRMAN, J. S. : Unloading Log Cars with a Stationarj^ Rig. Tlie Tim- 
berman, August, 1909, p. 48. 
O'Hearne, James: Tilting Log Dumps. The Timberman, August, 1912, 
pp. 68-69. 
Van Orsdel, John T. : Cableway Loading System. The Timberman, 
July, 1911, p. 46. 
Location. 
Ellis, L. R. : Necessity for an Accurate Topographic Map in Logging 
Operations. Timberman, July, 1911, pp. 49-53. 
Henry, H. P.: Advantages of Topographic Surveys and Logging Plans. 
The Timberman, August, 1912, pp. 65-67. 
Peed, W. W. : Necessity for the Logging Engineer in Modern Logging 
Operations. The Timberman, August, 1910, pp. 47-49. 
Rankin, R. L. : Practical Topographical Surveys for Building Logging 
Roads. The Timberman, March, 1912, p. 27. 
Van Orsdel, John P.: Topographic Survey and its Economic value in 
Logging Operations. The Timberman, August, 1910, p. 64. 
Van Orsdel, John P.: How to Obtain the Highest Practical Efficiency in 
Woods Operations. The Timberman, Sept., 1910, pp. 48-51. 
Wood, A. B.: Accurate Topographic Map is a Good Investment in Log- 
ging Operations. The Timberman, August, 1912, p. 67. 
