APPENDIX 473 



LOGGING RAILROADS 



Construction. 



Byrkit, G. M.: Machine for Picking up Railroad Track. The Timberman, 



Portland, Oregon, August, 191 2, p. 48. 

 Byrne, Austin T.: Highway Construction. John Wiley and Sons, New York, 



1901. 

 Engineer Field Manual: Parts I-\T, Professional Papers No. 29, Corps of 



Engineers, U. S. Army. Third (revised) Edition, Washington, 1909. 

 Engineers' Hand Book: Useful Information for Practical Men. Compiled 



for E. I. duPont deNemours Powder Company, Wilmington, Delaware, 



1908. 

 Gillette, H. P. : Earthwork and its Cost. McGraw-Hill Book Co., New York, 



1912. 

 : Hand Book of Cost Data. Myron C. Clark Pub. Co., 



Chicago, 1910. 

 Johnson, J. B.: Theory and Practise of Surveying. John Wiley and Sons, 



New York, 1901. 

 Railroad Engineering, Highways, Paving, City Surveying. International 



Library of Technology, Vol. 35B, Scranton, Pa., 

 SoMERViLLE, S. S.: Building Logging Railroads with a Pile-driver. The 



Timberman, August, 1909, pp. 37-38. 

 Tracy, John Clinton: Plane Surveying. John Wiley and Sons, New York, 



1908. 



Inclines. 



Clark, A. W.: Overcoming Grades too Steep for Geared Locomotives. The 



Timberman, Portland, Oregon, August, 1909, p. 34. 

 MacLafferty, T. H.: Handling Logging Trains on Excessive Grades. The 



Timberman, July, 1911, p. 44. 

 Nestos, R. R.: Aerial Snubbing Device. The Timberman, August, 191 2, 



p. 49. 

 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 Timberman, 



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, Portland, 

 Oregon, October, 1909, p. 23. 



Evenson, O. J.: An Improved Log-loading System. The Timberman, August, 

 1912, p. 52. 



O'GORMAN, J. S.: Unloading Log Cars with a Stationary Rig. The Timber- 

 man, 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. 



