DEVELOPMENT OF A LARCH CROP. 9 
Girth in Inches at 5 Feet above Ground. 
Year. 
No.1 No. 2 No. 3 No. 4 | No. 5 | No. 6 
T89E, Fi. : ; 25 | 204 244 304 25 214 
ESO2 Sy: é : one 214 26 31 26 22, 
1893, 263 314 | 274 
1894, . : , as 223 274 32 28 23 
1896, .. : : 28 24 284 33 297 244 
1290, ss 294 | 25 | 30 | 344 | 325 | 26 
1900, : E . A 205) | 5s . a 
I90I,_. 2 ‘ se ds ori 353 334 
TOO2, : é 318 | 274 314 36 335 284 
[aes | 33h | STs ee 30% 
mee eee ss gy 
The girth, height, and volume in 1891 and in 1905, with 
increase due to growth during the interval of fourteen years, are 
given below. The girths were measured at 5 feet from the 
ground and the heights to the topmost twig. 
| = I during th 
1891. eo ee oan oe 7 eae 
Nos. > 
Girth. ar Volume. | Girth. ald Volume. / an High, wee 
Standard | Standard | | Standard 
Inches.| Feet. | Cub. Feet.|Inches.| Feet. | Cub. Feet.| Inches.| Feet. | Cub. Feet. 
I 25 42 7°292 35 58 | 19°736 | Io 16 | 12°444 
2 seal 40 | 4°669 | 284{ 57 | 12°860 8 i, 8-191 
3 | 244} 45 | 77503 | 334] 51 | 15°898| 9 | 16 | 8305 
4 304 | 44 | 11°369 | 37%} 62 2ADIS | 7 18 | 12°843 
5 25 42 | 7°292 36 60 21°600 | II 18 14°308 
6 | 21% | 34 | 4°365 | 3028 | 52 | 13°769| 98] 18 9°404 
| 
Average ) | Average |] | Average /| 
volume | 7081 volume 18‘o12 | volume | 10°931 
per tree, per tree, per tree, 
Representing, by Quarter- | Representing, by Quar- | Representing, by Quar- 
girth Measurement, ter-girth Measure-| ter-girth Measure- 
Cottey SUE ment, c. ft. 13-509 | ment,  c. ft. 8198 
These six trees were selected as it seemed unlikely that 
they would be removed in future thinnings; but owing to 
their being more isolated than most of the others, they are 
above the average size of the trees forming the crop. From 
careful measurements, however, I found that the average volume 
per tree, taken over the whole area, was fully 84 cubic feet 
(quarter-girth measurement). Two acres (each in a different part 
