JACK PINE. 43 
TaBLE 27.—Volume in board fect of white pine trees of different diameters and heights. 
[Based on mill cut of lumber from 1,578 trees in southern New Hampshire, 60 per cent being round-edged 
lumber. Measurements by L. Margolin, 1905. | 
Total height of trees (feet). 
Diameter 
breast aT 
high. 30 40 50 60 70 80 
Inches. Board feet. | Boardfeet. | Boardfeet. | Boardfeet. | Board fect. | Board feet. 
Dears 8 12 AUG AA area ee Set oe oe ee IN| gto ie en 
(Geo Saeneere 13 20. 23 27 XG a) | MANS esa Wee SAR 
anos 18 28 34 39 HAUL fall Se pe Ube 
Sie Wee aoe 24 36 45 53 C7 SN ae 
Gee Ty 32 44 56 69 8i 93 
QAR epee Aq 53 70 85 103 119 
TE Se a | Eee vee a 63 84 103 126 147 
1 GRR 2 ON lati Sak teat 73 100 125 151 177 
1 OE a ee 84 117 148 180 219 
Aaa steel eR 95 137 173 210 243 
1 Uji Bats Se ee ne vi 105 158 200 241 282 
Tear ea cree Re SS SN a A 181 230 277 323 
U7 BOS Ne All EAPO eR yes eee Ree Seam ae ater 209 261 313 368 
Eee ee [Posse ee Oa ae [eer cole isis take 238 297 352 Ail 
SUN End aN a ee a enc ole a 270 335 393 460 
A Dep Bie oo a SR UN ee eee ate 302 379 436 506 
This table was used in calculating mil!-tally yieldsin Tabie 10. It is given for comparison with Table 25 
showing board-feet contents of jack pine trees of different diameters and heights scaled by Seribner Decima’ 
C log rule. x 
TABLE 28.— Number of ties per tree in jack pine trees of different diameters in western 
Ontario. 
From an article by L. M. Ellis in the Forestry Quarterly, March, 1911. Basis 100 trees. Equivalent in 
board feet added by the author. 
Diameter| Total in No. 1, No. 2, Cull, A 
breast | height |‘. vempe)| 7727” | 6” x6” | 5” x5” | Total. ieee 
high, |(average). CP eee xcs? x 8’ x 8’ foee 
Inches Feet. Years 
10 56 AS meena a 0.8 Bee dt 1.9 3a 
11 61 55 0.3 2.0 1.0 3.3 74 
12 66 62 ie 1.8 8 3.8 94 
13 70 70 Fh, 9) 1) 8 4.5 119 
14 74 80 3.2 1.5 4 5.1 145 
15 77 91 3.8 1pes a 5.4 158 
16 8h 107 4.0 1.2 2 5.4 160 
