34 



BULLETIN 1060, U. S. DEPARTMENT OE AGRICULTURE. 



Table 12. — Volume table for Sitka spruce in Behm Canal (Alaska) region. 



This table is based on taper measurements, in 1917, of 131 trees, total 

 height and length of tip of 28 trees, and total height only of 92 trees which 

 grew near Loring, Alaska. Figures indicate merchantable volumes, scaled 

 by Scribner Decimal rule, and represent contents from stump height of 2 

 feet and up to 6 inches d. i. b. at top. They are unreliable for trees over 44 

 inches in diameter. The table was prepared under the direction of R. E. Kan 

 Smith. 



Diameter breast-high. 



Volume. 



Diameter breast-high. 



Volume. 



Inches. 



24 



Boardfeet 

 in tens. 

 82 

 101 

 132 

 154 

 166 

 192 

 219 

 250 

 283 

 318 

 357 



Inches. 



46 



Boardfeet 

 in tens. 

 400 



26 



48 



445 



28 



50 



491 



30. 



52 



536 



32. 



54 



587 



34 



56 



639 



36 



58 



686 



38. 



60 



736 



40 



62 



784 



42 



64 



837 



44 



66 



890 









Table 13. — Log volume table for Sitka spruce in Oregon and Washington. 



This table was constructed from measurements of 234 felled Sitka spruce 

 trees in Oregon and Washington (the majority of which grew along the Hump- 

 tulips River in Washington). By means of the Scribner Decimal C rule the 

 volume of each log and its percentage of the total merchantable volume in the 

 tree were calculated, and these percentages were curved and applied to the 

 merchantable volume of the average tree for each diameter class. Logs are in 

 32-foot lengths. 





Total 

 mer- 

 chant- 

 able 

 volume. 



Log volume and percentage of total volume. 





Diameter above 

 t swell. 



Butt log. 



Second log. 



Third log. 



Fourth log. 



Basis. 



Inches. 

 20 



Bd. ft. 



in tens. 

 40 

 58 

 83 

 108 

 140 

 178 



219 



269 

 317 



374 

 431 



493 



558 

 622 

 692 

 768 



842 



916 



998 



1,081 



1,169 



1,250 

 1,334 

 1,423 

 1,514 

 1,609 



1,862 



Bd.ft. 



in tens. 

 23 

 32 

 43 

 53 

 66 

 79 



93 

 109 

 125 

 143 

 161 



181 

 202 

 222 

 245 

 269 



292 

 315 

 340 

 365 

 391 



413 

 437 

 461 



484 

 510 



575 



Per 

 cent. 

 57.8 

 54.9 

 52.2 

 49.6 

 47.1 

 44.6 



42.6 

 40.7 

 39.4 

 38.3 

 37.5 



36.8 

 37.3 

 35.8 

 35.4 

 35.1 



34.7 

 34.4 

 34.1 

 33.8 

 33.5 



33.1 

 32.8 

 32.4 

 32.0 

 31.7 



30.9 



Bd.ft. 



in tens. 

 13 

 18 

 26 

 33 

 42 

 53 



64 

 78 

 91 

 106 

 122 



138 

 156 

 173 

 192 

 210 



229 

 247 

 288 

 288 

 309 



329 



348 

 369 

 392 

 413 



472 



Pa- 

 cent. 

 33.7 

 32.5 

 31.6 

 30.8 

 30.3 

 29.8 



29.4 

 29.0 

 28.7 

 28.5 

 28.3 



28.1 



28.0 

 27.9 

 27.7 

 27.4 



27.2 

 27.0 

 26.9 

 26.7 

 26.5 



26.3 



26.1 

 26.0 

 25.9 

 25.7 



25.4 



Bd.ft. 

 in tens. 



Pa- 

 cent. 



Bd.ft. 

 in tens. 



Pa 



cent. 



No. 

 trees. 



2 



22. 











9 



24. 











9 



26 











10 



28 











8 



30. 



34 



42 

 53 

 62 

 74 

 86 



98 

 112 

 124 

 139 

 155 



171 

 187 

 204 

 223 

 242 



259 



277 

 296 

 316 

 338 



395 



19.4 



19.5 

 19.6 

 19.7 

 19.8 

 19.9 



19.9 



20.0 

 20.0 

 20.1 

 20.2 



20.3 



20.4 

 20.5 

 20.6 

 20.7 



20.7 



20.8 

 20.8 

 20.9 

 21.0 



21.2 







14 



32... 











34. . 







23 



36 



35 



41 

 47 



55 

 63 

 71 



80 

 89 



98 

 108 

 119 

 129 

 141 



152 

 164 

 178 

 191 

 204 



244 



11.0 

 11.0 

 11.1 



11.2 

 11.3 

 11.4 

 11.5 

 11.6 



11.7 

 11.8 

 11.9 

 12.0 

 12.1 



12.2 

 12.3 

 12.5 

 12.6 

 12.7 



13.1 



28 



38 







40 



85 



42 







44 



32 



46 







48 



18 



50 







52 



15 



64 







56 



14 



58 







60 



4 



62 







64 



4 



66 







68 



5 



70 







75 . 



4 





234 



