﻿WHITE PINE UNDER FOREST MANAGEMENT. 



33 



Tablk 14. 



-Rate of interest on the total investment earned by second-growth stands under 

 different conditions. 1 



Amount 

 hauled 



daily per 

 team. 



Cost 

 of forma- 

 tion. 



Quality I. 



Quality II. 



Quality III. 



Most 

 profitable 

 rotation. 



Interest 

 rate. 



Most 

 profitable 

 rotation. 



Interest 

 rate. 



Most 

 profitable 

 rotation. 



Interest 

 rate. 



Board ft. 





Years. 



Per cent. 



Years. 



Per cent 



Years. 



Per cent. 



1,000 





40 



7.7 



40 



6.6 



50 



5.3 





$3.00 



40 



6.7 



45 



5.7 



50 



4.5 





6.00 



40 



5.9 



45 



5.0 



50 



3.9 





9.00 



40 



5.3 



45 



4.5 



50 



3.5 





12.00 



40 



4.9 



45 



4.1 



55 



3.0 





15.00 



40 



4.5 



45 



3.8 



55 



2.7 



2,000 





35 



9.1 



40 



7.8 



45 



6.4 





3.00 



35 



7.8 



40 



6.8 



45 



5.5 





6.00 



40 



7.1 



40 



6.1 



45 



4.9 





9.00 



40 



6.5 



40 



5.6 



50 



4.4 





12.00 



40 



6.0 



45 



5.1 



50 



4.0 





15.00 



40 



5.6 



45 



4.8 



50 



3.7 



3,000 





35 

 35 



9.6 



8.2 



40 

 40 



8.2 

 7.2 



45 

 45 



6.7 

 5.8 



3.00 



- 



6.00 



40 



7.4 



40 



6.4 



45 



5.2 





9.00 



40 



6.8 



40 



5.8 



45 



4.7 





12.00 



40 



6.3 



45 



5.4 



45 



4.3 





15.00 



40 



5.9 



45 



5.0 



50 



4.0 



4,00(5 





35 

 35 



10.0 

 8.3 



40 

 40 



8.3 

 7.3 



45 

 45 



6.8 

 5.9 



3.00 





6.00 



40 



7.5 



40 



6.6 



45 



5.3 





9.00 



40 



6.9 



40 



6.0 



45 



4.9 





12.00 



40 



6.5 



40 



5.5 



45 



4.4 





15.00 



40 



6.1 



45 



5.1 



50 



4.1 



1 Based on the stumpage and cost data given in preceding tables. The interest rates were determined 

 graphically by curving the profits and losses found by computing the initial and annual expenses at several 

 fixed rates of interest. This method, devised by Mr. W. B. Barrows, is described in the Proceedings of 

 the Society of American Foresters, vol. 8, No. 3, p. 362. 



Table 15. — Profit and loss per acre from raising white pine under different conditions, 

 showing ages between which stand could be cut with profit, the most profitable age, and 

 the maximum profit, as a 4 per cent investment. 



Daily 

 hauling 

 capacity 

 for one 



team. 



Cost 



of 

 forma- 

 tion. 



Quality I. 



Quality II. 



Quality III. 



Profit- 

 able 

 ages 

 for 

 cut- 

 ting. 



Most 

 profit- 

 able 

 rota- 

 tion. 



Profit 

 or loss. 



Profit- 

 able 

 ages 

 for 

 cut- 

 ting. 



Most 

 profit- 

 able 

 rota- 

 tion. 



Profit 

 or loss. 



Profit- 

 able 

 ages 

 for 

 cut- 

 ting. 



Most 

 profit- 

 able 

 rota- 

 tion. 



Profit 

 or loss. 



Bd.ft, 

 1,000 



2,000 



3,000 



4,000 



S3. 00 

 6.00 

 9.00 

 12.00 

 15.00 



3.00 

 6.00 

 9.00 

 12.00 

 15.00 



3.00 

 6.00 

 9.00 

 12.00 

 15.00 



3.00 

 6.00 

 9.00 

 12.00 

 15.00 



Years. 

 30-* 

 30-65 

 35-60 

 35-60 

 35-55 

 40-50 

 20-* 

 25-* 

 25-65 

 30-65 

 30-60 

 30-60 

 20-* 

 25-* 

 25-65 

 30-65 

 30-60 

 30-60 

 20-* 

 25-* 

 25-65 

 25-65 

 30-60 

 30-60 



Years. 

 50 

 50 

 50 

 45 

 45 

 45 

 50 

 50 

 50 

 50 

 50 

 45 

 50 

 50 

 50 

 50 

 50 

 45 

 50 

 50 

 50 

 50 

 50 

 45 



$127. 67 

 106. 35 

 85.03 

 64.97 

 47.44 

 29.92 

 216. 11 

 194. 79 

 173. 47 

 152. 15 

 130. 83 

 113. 17 

 245. 38 

 224. 06 

 202. 74 

 181.42 

 160. 10 

 140. 74 

 260. 22 

 238. 90 

 217. 58 

 196. 26 

 174. 94 

 154. 74 



Years. 

 35-* 

 35-65 

 40-60 

 40-55 

 45 



"3f>* 



30-* 



35-65 



35-60 



35-60 



40-55 



25-* 



30-* 



30-65 



35-65 



35-60 



35-60 



25-* 



30-* 



30-65 



35-65 



35-60 



35-60 



Years. 

 55 

 50 

 50 

 45 

 45 

 45 

 50 

 50 

 50 

 50 

 50 

 50 

 55 

 50 

 50 

 50 

 50 

 45 

 55 

 50 

 50 

 50 

 50 

 45 



$84. 25 



62.86 



41.54 



23.31 



5.78 



-11.74 



153. 01 



131. 69 



110.37 



89. 05 



67.73 



46.41 



177. 45 



154. 51 



133. 19 



111.87 



90.55 



72.11 



189. 25 



166. 10 



144.78 



123. 46 



102. 14 



82.70 



Years. 

 40-65 

 45-60 



35-* 

 40-65 

 40-60 

 45-55 

 50 



35-* 

 35-* 



40-65 

 40-60 

 45-55 



30-* 



35-* 



40-65 



40-60 



45-55 



45-50 



Years. 

 55 

 50 

 50 

 45 

 45 

 45 

 55 

 55 

 50 

 50 

 50 

 45 

 55 

 55 

 55 

 50 

 50 

 50 

 55 

 55 

 55 

 50 

 50 

 50 



$42.86 

 18.86 



- 2.46 

 -24. 61 

 -42. 14 

 -59. 66 



95.98 

 70.04 

 45.91 

 24.59 

 3.27 

 -18. 22 

 113. 41 

 87.47 

 61.77 

 40.45 

 19.13 



- 2.19 

 122. 31 



96.37 

 70.43 

 48.55 

 27. 23 

 5.91 



Note. — The stars indicate an age of over 70 years. The computation was not extended to stands over 

 70 years old, although under certain conditions a rotation of more than 70 years could undoubtedly be 

 employed with profit 



6738°— Bull. 13—14 3 



