AQ BULLETIN 820, U. S. DEPARTMENT OF AGRICULTURE. 
TABLE 25.— Volume in board feet of jack pine trees of different diameters and heights in 
Minnesota. 
{Scaled by Scribner Decimal C logrule. Stump height, 1 foot: top diameter inside bark, 5.5inches. Based 
on taper curves, scaled mostly as 16.3-foot logs, with a few shorter logs where necessary. | 
Total height of trees (feet). 
Diam- 
eter 4 
breast 20 | 30 | 40 50 60 | 70 | 80 Basis. 
high, 
Volume (board feet). 
Inches. Trees. 
RiGee 9 10 11 15 23 ~ 36 50 72 
ORBLE papel | 15 17 24 34 50 68 62 
LOS NWT oe 20 23 34 46 65 87 64 
FOS ge een ee I eae 29 43 59 81 108 36 
Oma eerie Veins oes 36 53 73 98 130 27 
Ee. ee Op oon reat 8 43 64 88 116 152 19 
1 PS | PMR IR A Es 51 76 104 136 176 8 
Iasi es eae ages ee pr oR copa 90 121 158 203 2 
EGS ee ee [sic $e et Tepe 104 139 182 232 4 
7 Ren Seeds Oe Pe ee er ale a 118 158 207 263 3 
PSB ae Nae ihe a ms oe te 134 178 234 DOA eS Ge 
re ae aa a) cee ee mee eth i Mg cieot [eg ee 198 262 Roar | Peerage: 
Pye imp neaes PRR fe mO eier e [ie a SS 220 291 BGs ene. ween 
288 
TABLE 26.— Volume in board feet of jack pine trees of different diameters, and number 
of logs per tree, in Minnesota. 
{Scaled by Scribner Decimal C logrule. Stump height, 1 foot; top diameter inside bark, 5.5inches. Based 
on taper curves, scaled mostly as 16.3-foot logs, with afew shorter logs where necessary. | 
if : 
Number of 16-foot logs. | 
Diam- 
pend | 14 | 2 Qk | 3 | 3h | 4 | Basis. 
high, 
Volume (board feet). 
Inches. Trees 
Se sae 14 24 39 BAC ces cote Peat prac py ee eee 72 
Oa 17 27 42 10 ic er mae Ace oem Mage 2 62 
LOR 20 30 AG 65 pS jail (eee ate) eae gee 64 
SLATS Se Ie oe 33 51 72 i Bald Ree rec tees re ieee 36 
12) Sieea 37 57 81 105 GW Beas ean yl 
URS Soa llW asses 41 64 90 118 Cy al eres eee 10 
AE See eevee 45 73 101 131 163 187 8 
Dee Se eheyo sie ciltars eerararere 83 113 146 181 213 2 
16:2 eee |e Rita re 94 127 163 201 239 4 
Ly fase eh See act ae Va a 106 141 180 223 266 3 
TS ae eee sees Af os eae ae 121 156 198 245 PAY Sl epee 
DOR tn SRN RE gece rn | ae Bae i aba 217 269 BSP Ae fp eS 
20) Soe acts sy tare | Reo eee a NTT ey as ae 188 237 293 BE ea ere 
| 288 
