me of 
DISTILLATION OF STUMPWOOD. 
5 
TABLE 1.—Stands of western yellow pine in California, Oregon, and Washing- 
ton, with reduction factors for various volumes and diameters of trees and 
stumps.* 
Diameter. Average volume— 
Reduc- Hedue: 
tion . 
Erase breast | Stump Of Of ae ur 
18. | height to| high.2 trees. || stumps. | Soinimes 
stump | and di- 
height. | ameters. 
i | fe 
Inches. -| . Inches. Inches Bd. ft. Cords 
22 2 24 500 0. 25 1 
23 2 25 GOO eae rose elle ite oe 
24 2 26 750 eo 1s) 
25 2 27 SHORT eas Bure cael ated 
26 2 28 COSY OMT Maui a Nt | ole 
26.5 2 28.5 1, 000 HO 2 
27 2 29 SL (Decal | ees ee tnt era) eee oR 
28 D5 30. 5 1, 250 . 625 2.5 
29 PAN) 31.5 ILS Ht Oe HP ay eae et Ee ae 
30 20 32. 5 1s ks a EN aR STR) en 
30. 5 D5) 33 1, 500 75 3 
32 2.5 34.5 PAGOO! errs ape ec ies ee eee 
32.5 255) 35 i Leora} Oe | a an ee acts) 
33 2.5 35. 5 1, 850 Aten Sees 
33.5 2.5 36 AV OAR wr a a ea ae A ee 
34 3 37 2, 000 1 4 
35 3 38 DESO sa| weg marae aman toe 
36 3 39 2,250 25) 4.5 
37 3 40 Ds AQ ifr io as te tea eeg rea Ege 
38 3 41 2, 500 1, 25 5 
39 3.5 42.5 Ps 810) Ua eyecare cea ORE IE a 
40 3.5 43.5 2,750 1.375 | Ca 9) 
41 By) 44,5 3, 000 1.5 6 
41.5 3.5 45 3, 250 1. 625 6.5 
42 3.5 45.5 3, 500 MA) 7 
43 3.5 46.5 3, 750 1.875 | Te® 
44 3.5 47.5 SHOOOM Tes MeL ee ES SE 
45 4 49 4, 000 2 8 
1 This working table must be adapted by the user to meet the variations from the normal stand as they 
are found to occur. The volumes in board feet represent close approximations of the averages of all 
obtainable volume tables for the regions named. The volumes in cords are taken from measurements of 
corded stumpwood in various regions, and are as conservative, when the wood is split for the retort, as 
those used for volume, B. M. 
2 The height of the stump is here assumed to be 18 inches. For higher stumps the diameter would be 
duced according to the scale, as given in columns 5 and 6. 
TABLE 2.—Sample cruises of California yellow pine from different parts of the 
State, with volume and acre equivalent in number of stumps of various diam- 
eters required to produce the given yields (area covered, 6,400 acres, average 
stand, or slightly better). 
Number stumps. 
: Violante Per cent 
Location. total 
Perches tie ote 28.5- 37- stand 
inch. inch. inch 
hd. ft: 
Piaurado, 18 Nery to sec, 35200. 2220222222222. -2/ 10,082 20.00 10. 00 5.00 83. 6 
Masson 25.N. R14 sect 24.02.00. 2. coe ee end | 10,501 21. 00 10.50 5. 25 64. 7 
IASScmR yO TN(EVELOUEYE SOCK DeeY sak Ae 18, 236 36. 40 18. 20 9. 10 46, 4 
HPASSEMELT SO IN SRO Hs SCC. —- ject cet koe ce eee ee 12, 253 24, 50 12. 25 6. 12 68. 5 
Modoe 46 N Rild By sec? 82:04 6. 2h). obi. 12, 444 24. 88 12. 44 6. 22 87.6 
REMREETS ASON) hy OEY, SOG. De 6 Fool coco ce at eee 9, 503 19.00 9. 50 4, 80 26. 9 
Sequoia ROM, Sec Olt ees! 5, 870 11. 74 5 87 3. 92 71.6 
Paemio Sere oh Hy, SeCr LBi eo. eb. e se.) 10,518 21. 02 10. 51 55.20 83. 4 
SIMA Ole e4 H, SOC. Qis.2. oo cos ee | 17,163 34. 32 17.16 8.58 72.1 
Sfanisiaus, T4N R18 B, sec. 17..:........----.---. 12, 276 24. 55 12. 27 6. 11 47, 4 
AV erage fOri6;400 ACIS: - = cc Sages ccs eee c eee 11, 884 23.75 11. 88 5. 94 64. 5 
- Estimates furnished by T. D. Woodbury, assistant district forester, San Francisco, Calif. Ifthe stump- 
high diameters were used instead of those breast high, a Jarge number of trees would be included in the 
24-inch class, as many trees measuring 22 inches and over, breast high, would come within the 24-inch class 
if measured on the stump. 
