NOTES AND QUERIES. 105 
For this purpose a plot, which had been for two years used 
as an enclosure, was utilised, the soil being a humus-containing, 
gravelly, and somewhat loamy diluvial sand (valued in the estate 
books as a spruce soil of Class III.). Here a total area of 
0°47 hectares,! protected at the sides by old timber, was 
planted, half with four-year-old Douglas fir in 1°5 metre squares, 
and half with spruce in 1°2 metre squares. 
The amount of timber on this plot, which has not yet been 
cleared, has now been calculated by means of a careful survey. 
The accompanying Table gives an interesting view of the 
growth-relations on the two experimental plots. 
{ . 
| Dovuctas Fir. Age, 29 years. Spruce Fir. Age, 29 years. 
| Area planted, 0°235 hectares. Area planted, 0°235 hectares. 
‘ | 
ae | ae | Cubic 23 | Phe Cabie | 
han = } ce H 
2 ob Olt es a3 Contents. || mB oO. ee te ee Contents. | 
oo | og] = ise ay e381 Pac? | 2 Te 
cc Qo on Cae c.. ec 2o a) “Se i. oe 
ww Es ) ° mt es | ° / 
Si a Be = Se Per = a = | - | 3S Per : 
uv os | : o -os 
| As 45 | Tree. | Tol |) Hs | (8 | tree.) So 
t | | i | 
>) a | ae ee 
| Inn wieein | In In 
,Incm. In m.,| In sq. m.\cub.m.| cub. m. | In cm. Inm.! Insq. m.|cub.m. cub. m. 
oe 5| 8 | 0006] 0-01; 0°05 4 95| 61! O°II9 | oor! 0°95 | 
6 | 162] 10] 07458] 0°02| 3°24)|} 6 368. 8 | 1°040 | 0°02! 7°36 
8 99| 12 | 0°498|0'03| 2°97) 8 405} 10 | 2°036 | 0°03 | 12°15 
| 10 |118] 14 | 0°926| 0°06! 7°08 fe) 297| 10 | 2°333 | 0°04 11°88 
| IZ |120! 16 | 1°357] 0°09 | 10°80 12 120; {2 | 1°357 | 0°07 8°40 | 
KA T20)/ 407 | L985 | O12 | 15°48 14 50| 14 | 0°770 |o°IO! 5°00! 
| 16 90 18 | 1°810|0°17|15"30|} 16 * 15) 14 | 0°302 | 0°13 | T-95 | 
} 18 | 69) 18] 1°756| 0°22) 15°18} 18 4; 16} o'102 |o18;) 0°72 
{ 20 FOO 1571 | 0:28 | 14700 || 20 I} 16 | 0°031 | 0°23! 0°23 | 
i) 22 6| 19 | 0°228| 0°34| 2°04 : 
| 24 12| 20 | 0°543|0'40, 4°80), 
| 20 ale2 | 07372 | 0:49 | 3°43) |I 
28 I} 22 | 0°062]0°59} 0°59 ; 
| 32 Ip22 | O1080'|'0°72| 0°72 5 i 
| SEQ | 1r652) ... | 95°68 = 1 1335] 2. | (OvOOO)|t.-  P ane 
If the results be reduced to 1 hectare, then we have— 
Douglas fir, total area of basal trunk sections, - 49,583 sq. metres. 
Spruce, total area of basal trunk sections, . - 34,426 sq. metres. 
Douglas fir, total yield of wood, . : ; 407 cubic metres. 
Spruce fir, total yield of wood, : ‘ 207 cubic metres. 
The wood of both plots could now be used for poles, and 
in part as small pit-timber. An estimate of the market value 
1; hectare =2°47 acres. 
