APPENDIX. 



Table 11. — Volume table for Sitka spruce in Oregon and Washington. 



This table is based on the measurement in 1914 and 1919 of 450 felled Sitka 

 spruce (Picea sitchensis) trees,, grown in fully stocked stands, averaged for all 

 sites and seven localities at elevations from sea level to 1,200 feet, and from 

 southern Oregon to northern Washington. Trees were scaled by Scribner 

 Decimal C rule to a top diameter of 10 inches inside bark ; actual height of stump 

 was used (it averaged 8 feet) ; logs were scaled in 32-foot lengths and less, plus 

 an allowance of 0.5 foot for trimming. The table was constructed by the frustum 

 form factor method and volumes curved. Trees are classified according to their 

 diameter outside bark at 1 foot above pronounced basal swell, which was found 

 to average 8 feet above ground. No allowance is made for defect or breakage. 

 Breakage in 184 trees amounted to less than 2 per cent of merchantable volume. 





Aver- 

 age. 1 



Number of 32-foot logs. 





Diam- 



2 



n 



3 



3i 



4 , 4J 5 1 5J 



6 



6i 



7 



7i 



Basis. 



eter 

 above 



Total height in feet. 



■well. 



112 



128 



142 



158 



173 188 | 202 1 217 



231 



241 











Volume in board feet in tens. 



Inches. 

 12 



5 



12 



19 



26 



40 



58 



83 



108 



140 



178 



219 



269 



317 



374 



431 



493 



558 



622 



692 



708 



842 



m 



998 

 1,081 

 1,169 



1 , 250 

 1,834 



1, 123 

 LftM 



1,609 

 1,882 



2, 120 

 2,412 

 2,711 



26 

 28 

 30 

 34 



39 

 45 

 51 

 56 

























No. 



trea. 



14 



























16 



41 

 46 

 53 

 60 

 69 

 78 

 88 

 98 

 110 

 123 

























18 



59 

 69 

 79 

 90 

 102 

 115 

 130 

 144 

 158 

 174 

 191 

 208 

 224 

 239 

 255 

























20 



83 

 96 

 109 

 123 

 139 

 158 

 175 

 195 

 215 

 237 

 259 

 283 

 309 

 335 

 364 

 395 



















3 



22 



Ill 

 129 

 147 

 167 

 188 

 210 

 234 

 258 

 283 

 310 

 338 

 369 

 400 

 433 

 466 

 503 

 538 

















14 



24 

















14 



26 



172 

 195 

 220 



198 

 226 

 254 













24 



28 



255 



287 



321 



355 



382 



430 



469 



511 



554 



601 



650 



702 



755 



810 



868 



926 



988 



1,051 



1,115 



1,182 



1, 252 



1,323 



1,509 



1,707 











28 



30 











87 



32 



246 283 

 273 ! 314 

 302 1 346 

 330 1 379 

 362 i 415 

 394 i 452 

 429 I 491 

 464 I 532 

 502 576 

 542 622 

 584 668 

 626 718 



358 



406 



437 



479 



523 



570 



619 



671 



726 



783 



842 



904 



968 



1,034 



1,102 



1,172 



1,246 



1,320 



1,397 



1,474 



1,680 



1,901 



2, \\X 



•J, 424 









31 



34 









24 



36 









30 



38 













25 



40 













31 



42 













25 



44 









686 



742 



802 



866 



932 



999 



1,069 



1,147 



1,220 



1,295 



1,373 



1,454 



1,539 



1,630 



1,862 



2, 102 



2, 374 



% 666 







13 



46 











26 



48 







881 

 951 

 1,022 

 1,096 

 1,173 

 1,253 

 1,334 

 1,418 

 1, 505 

 1,597 

 1,690 

 1,786 

 2,037 

 2,301 

 2,586 

 2, 891 



1,278 

 1,366 

 1,455 

 1, 545 

 1,638 

 1,734 

 1,835 

 1,933 

 2,199 

 2, 405 

 2,814 

 3,139 



20 



50 









19 



52 









18 



54 











IS 



66 











673 

 718 

 764 

 811 

 860 

 911 



769 



821 



875 



930 



987 



1,046 



1,107 



1,168 



10 



58 













8 



60 













5 



62 













7 



64 













4 



66 













7 



68 













10 



70 















4 



75 















7 



80 

















4 



86 

















•1 



90 



















2 

























450 



• When trees are not tallied by number "f Iors, use this column. 



33 



