20 WORKING PLAN, FOREST LANDS IN SOUTH CAROLINA. 
VOLUME TABLES. 
The following tables, giving the average merchantable volume of 
standing timber in board feet by the Two-thirds Rule, on a basis of 
diameter at breastheight, were used in scaling the valuation surveys. 
The tables for pine are based on measurements of the product of 
1,366 trees of different diameters, actually cut in the woods, as 
follows: Longleaf Pine, 496 trees; Loblolly Pine, 472 trees; Cuban 
Pine, 331 trees; Pond Pine, 67 trees. They give the total merchant- 
able volume and the volume of merchantable heartwood and sapwood 
for diameters from 12 to 36 inches. The volumes given under the 
several diameters for merchantable heartwood and sapwood represent 
not the actual volume of heartwood and sapwood, but the volumes of 
the logs which scaled as heartwood and sapwood logs by the follow- 
ing specifications: 




— 
Heart | Heart 
; diameter || diameter 
= : Ie ear | mecessary : necessary 
Diameter of logs at small end. | to scale as |, Diameter of logs at small end. foRGaIeane 
heartwood || heartwood 
logs. logs. 
| 
Inches. Inches. 
NOOVerd2imGhHes re. ote eo 8 ||, 212 to'24 Inches:822- Cas eee 16 
12S coon Chesham Ane eee ee 10) || 242 to 27 InChes. ec ssece ee eee eee 18 
1b} tod in@hesh = see ae ee sae ee 121272 sto S0GUNCHES: asso ae ee eee eee 20 
1S AboZicinGhesvase= at ce eee ee 14 || 302 inches and! over2=-22-4-5-225-26- 22 



TaBLeE 7.—Merchantable volume by the Two-thirds Rule. 
LONGLEAF PINE. 

| 










Tecra Ste | Sapwood. Total. Gees ; Bee Sapwood. | Total. | 
high. | ; ] high. : | 
Inches. | Board feet. Board feet. | Board feet. | Inches. | Board feet. | Board feet. . Board feet. 
Oil ee sires 70 70 || 25 G04: lao aes ee as 604 
dW) Be pcan poets 97 97 || 26 | cs era] Peaeaentees SGA 658 | 
TCL RT Ce | 129 129 3| steed a TO Ge eee | 712 | 
ER Ges es. | 162 162 | 28 | TU, gl eee aces | 770 | 
1G Al sseee Secon 5 200 | 200 | 29 BO To 4s acces | 830 | 
emcee ee re 238 | 238 30 B90 pale Ba eee [= a s06 | 
18 | 183 | 97 | 280 | 31 95S? sae ese 958 | 
19 233 87 320 32 TSQ22 a law yee ee | 1, 022 
20 305 61 366 33 A SO98 ya he ee ee 1, 093 
21 AIO ae tee | 410 34 iyi (cen era eee | tes 
22 A5T Dil eee eee | 457 35 DAO sen Fe oer | 1, 240 
23 js, aes | 502 36 1,310; S925 ae Heeehet 
24 55) an eee fo | 552 | 





