64 



BULLETIN" 285, U. S. DEPARTMENT OE AGRICULTURE. 



by carefully studying and comparing defects, methods of utilization, etc., and apply- 

 ing suitable converting factors. "With these precautions graded volume tables can be 

 constructed by combining the graded log tables here given with Tables 43, 44, and 55, 

 which show the average taper of trees measured in the Lake States. 



For graded A'olume tables actually constructed from these tables and for additional 

 information relative to the latter the reader is referred to the article by Messrs. Bailey 

 and Heald. 



Table 40. — Yellow birch log scale, 1 Windham County, Vt. 







10-foot logs. 











14-foot logs. 







Diameter 



Grade of lumber. 





Diameter 







3rade of lumber. 





lsts 





lsts 

 and 

 2ds. 











lsts 





lsts 

 and 

 2ds. 











at small 

 end. 



and 

 2ds 

 red. 



1C. 

 red. 



1C. 



2C. 



3C. 



Total. 



at small 

 end. 



and 

 2ds 

 red. 



1C. 



red. 



1C. 



2C. 



3C. 



Total. 



Vc 



lume— board feet. 





Volume— board feet. 



Inches. 

















Inches. 

















8 

 9 

 10 

 U 

 12 

 13 

 14 











10 

 10 

 15 

 15 



20 

 20 

 20 

 20 



10 

 10 

 15 

 15 

 15 

 20 

 20 

 25 



20 

 20 

 30 

 40 

 50 

 60 

 70 

 80 



7 

 8 

 9 

 10 

 11 

 12 

 13 

 14 













10 

 10 

 15 

 20 

 25 

 25 

 25 



15 



15 

 15 

 15 

 20 

 20 

 20 

 20 



10 

 15 

 15 

 15 

 20 

 20 

 25 

 25 



30 

 40 

 40 

 50 

 70 

 SO 

 100 

 110 





































10 

 10 

 15 

 20 

 20 







5 

 10 

 10 

 20 

 25 







5 

 5 



10 

 10 















5 

 10 



5 

 5 

 5 









5 



15 











15 



20 



20 



25 



90 



15 



15 







35 



30 



20 



25 



130 



16 



10 



10 



20 



25 



20 



25 



110 



16 



15 



10 



40 



35 



20 



30 



150 



17 



10 



15 



20 



30 



20 



25 



120 



17 



20 



15 



50 



35 



20 



30 



170 



18 



15 



15 



25 



30 



20 



25 



130 



18 



35 



15 



55 



35 



20 



30 



190 



19 



25 



20 



30 



30 



20 



25 



150 



19 



45 



20- 



70 



35 



20 



30 



220 



20 



30 



20 



30 



30 



20 



30 



160 1 



20 



60 



20 



75 



35 



20 



30 



240 



21 



35 



25 



35 



30 



25 



30 



180 ; 



21 



75 



25 



80 



35 



25 



30 



270 



22 



45 



30 



40 



30 



25 



30 



200 



22 



90 



25 



90 



30 



25 



30 



290 



23 



60 



30 



45 



30 



25 



30 



220 i 



23 



105 



25 



95 



40 



25 



30 



320 



24 



7 

 8 

 9 

 10 

 11 

 12 



70 



30 



55 



35 



25 



35 



250 



24 



7 

 8 

 9 

 10 

 11 

 12 



120 



25 



95 



40 



25 



35 



340 



12-foot logs. 



16-foot logs. 











10 

 10 

 15 

 15 

 15 

 15 



10 



15 

 15 

 15 

 20 

 20 



20 

 30 

 40 

 50 

 60 

 70 









1 5 

 10 

 15 

 15 

 20 

 25 



15 

 15 

 20 

 20 

 20 

 20 



10 

 15 

 15 

 20 

 20 

 20 



30 

 40 

 50 

 60 

 70 

 90 









5 

 10 

 15 

 20 

 20 

























5 

 5 



10 







5 



10 

 15 













5 



5 



5 



13 







5 



15 



20 



15 



20 



80 



13 



5 



5 



20 



30 



25 



25 



110 



14 



5 



5 



20 



25 



15 



30 



100 



14 



10 







35 



30 



25 



25 



130 



15 



10 







25 



25 



15 



30 



110 



15 



15 



10 



45 



30 



25 



25 



150 



16 



15 



10 



30 



30 



15 



311 



130 



16 



25 



10 



55 



35 



25 



30 



ISO 



17 



25 



10 



40 



30 



15 



30 



150 



17 



30 



15 



60 



40 



25 



30 





18 



30 



15 



4.". 



30 



20 



30 



170 



18 



40 



15 



70 



40 



25 



30 



2120 



19 



40 



15 



50 



30 



15 



30 



180 



19 



OO 



20 



80 



40 



25 



30 





20 



50 



15 



55 



30 



20 



30 



200 



20 



70 



25 



90 



40 





30 



280 



21 



BO 



20 



(in 



30 



20 



30 



220 



21 



90 



25 



100 



40 



25 



30 



310 



22 



70 



25 



65 



35 



20 



35 



250 



22 



110 



25 



110 



40 



25 



30 



340 



23 



85 



30 



70 



30 



20 



35 



270 



23 



130 



25 



115 



40 



25 



35 



370 



24 



90 



30 



70 



35 



25 



40 



290 



24 



145 



25 



120 



40 



25 



35 



390 



Based on mill tally of lumber from 1,530 logs. 



