60 BULLETIN 272, U. 8S. DEPARTMENT OF AGRICULTURE. 
Taste 17.—Increase in board feet and money value in 10, 20, and 30 years for cypress 
trees of various diameters, at stumpage price of $5 per thousand feet: 
Tree diameter (breast high) (inches). 
12 | 14 | 16 | 18 
Rate of growth (years required for 1 inch increase in diameter). 
3 4 6 | 3 | 4 6 | 3 4 6 3 4 6 
; | 
Present volume oi tree 
(board feet) .... 2 54 54 54 92 92 §2 141 141 14 200 | 200 200 
Annual increase in Vv olume.| 5.7 42) 2586 Gad AE Ghat le te eee GES TOES? 7.8 5.2 
Volume in 10 years......-.. 111 96 §2 159 142 125 228 206 184 303 278 252 
Volume in 20 years..-....-- 168 138 110 | 226 ae 158 | 315 271 227 406 | 396 304 
Volume in 30 years..-....-- 225 180 138 293 194 402 | 336 270 | 50S 434 35 
Present value of tree.....-- $0.27 |$0.27 |$0.27 |$0. 46 os ie $0.46 |$0.70 |$0.70 1$0.70 |$1.00 |$1.00 |$1.00 
Annual increase in value...| .028) .021! .014) .034| .025) .016) .044) .032| .022] .052] .039] .026 
Value in 10 years..........- -56| .48| .41.| .80| ..7%| .62| 1.14 | 1.03 | ‘92 |1.52| 1. 39 | 1.26 
Value in 20 years.......-...- NS4e 2 69F (2 soo ei lors SOON? fOr el noeF 8G lee ssa etearem ery 
Value in 30 years..........- Tal2 | 2900) 169" (S46 a Oe S68 R200 | ME G68r Stash en 2554 ales te etelenzs 
Tree diameter (breast high) (inches). 
20 H 22 | 24 
Rate of growth (years required for 1 inch increase in diameter). 
3 4 6 | 3 | 4 | 6 | 3 | 4 | 6 
Present volume of tree | 
(boardifect) i: = 2 ee 271 271 271 359 309 359 | 473 473 473 
Annual increase in volume. . 1253 9.2 6.2 Tas 7 11.8 7.8 20 15 id 
Volume in 10 years..—...-.-.-- 394 363 333 516 477 437 673 62 573 
- Volume in 20 years.......... 517 455 395 673 595 515 873 77. 673 
Volume in 30 years.........- 640 547 457 8&3 713 593 | 1,073 923 77 
Present value of tree_......-- $1.36 | $1.36 | $1.36 | $1.80 } $1.80 | $1.80 $2°36 | $2.36 $2.36 
Annual increase in value..._.. 062 046 031 .078 059 - 039 10 O75 050 
Value in 10 years...-.....--- 1.97 1.82 1.66 2.58 2.38 2.18 3.36 3.12 2. 86 
Value in 20 years.........--. 2.58 2. 28 1.98 3.36 2.98 2.58 4.36 3.86 3.36 
Value in 30 years............ 3.20 | 2.74 | 298 | 415 | 3.56 | 296 | 5.36 | 4.62 | 3.96 
J 
TREATMENT OF VIRGIN STANDS. 
Krom the lumberman’s standpoint the first aim in cutting virgin 
stands should be the complete utilization of the material taken. 
lose utilization of the tops and butts has been practiced for some 
years in Louisiana, and there seems no good reason why this would 
not be equally profitable along the southern Atlantic Coast, where 
lower transportation rates are offered to the central market region 
in the northeastern States. 
Too often customs from the earlier and more primitive logging 
days survive tenaciously, in spite of advancement and change in 
economic conditions which make complete utilization of trees profit- 
able. Considering the high value of cypress stumpage, it is believed 
to be an actual loss under ordinary conditions to leave high stumps 
and large sound tops. Felling the trees at the height at ee they 
have been girdled usually results in heavy waste of sound timber. 
1 Girdling is done at a high point to avoid unnecessary labor. 
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