126 LOGGING 



rules for the guidance of inspectors have been issued. The 

 specifications contained in them furnish the basis on which 

 market quotations are made. Grades are enforced by scalers 

 employed by the associations and a fee is charged for their 

 services. 



Among the chief hardwood log-grading rules are those of the 

 Lumbermen's Association, Nashville, Tennessee, and among the 

 chief softwood rules are those of the Columbia River Log Scaling 

 and Grading Bureau, Portland, Oregon, copies of which are given 

 on pages 525 to 528, inclusive, in the Appendix. 



BIBLIOGRAPHICAL NOTE TO CHAPTER VHI 



Gary, Austin: A Manual for Northern Woodsmen. Published by Harvard 



University, Cambridge, Mass., 1901. 

 Clark, Judson F.: The Measurement of Saw Logs. Forestry Quarterly, 



Vol. IV, No. 2, 1906, pp. 79-93- 

 Forest Service: U. S. Department of Agriculture. The National Forest 



Manual, Washington, D. C, 191 1. 

 Graves, Henry Solon: Forest Mensuration. John Wiley and Sons, New York 



1906. 

 : The Woodsman's Handbook (revised and enlarged). 



Bulletin 36, U. S. Forest Service, Washington, D. C, 1910. 

 Tiemann, H. D.: The Log Scale in Theory and Practice. Proceedings of the 



Society of American Foresters, Vol. V, No. i, Washington, D. C, 1910, 



pp. 18-58. 

 WOOLSEY Jr., T. W.: Scaling Government Timber. Forestry Quarterly, Vol. 



V, No. 2, 1907. 

 Ziegler, E. a.: The Standardizing of Log Measures. Proc. of the Soc. of 



Am. For., Vol. IV, No. 2, 1909, pp. 172-184. 

 ZoN, Raphael: Factors Influencing the Volume of Wood in a Cord. Forestry 



Quarterly, Vol. i, pp. 126-133. 



