1 904 



FORESTRY AND IRRIGATION 



265 



PLANTED WHITE PINE 43 YEARS OI.D. 



foresaw the time when marketable native 

 pine would be gone, and when planted 

 timber would be of economic impor- 

 tance. Then about 1880 the cheap trans- 

 portation rates from new white pine fields 

 began to put a damper on further plant- 

 ing. But with present conditions there 

 is still reason for a continuation of the 

 planting. Careful surveys have been 

 made of a number of these older planta- 



tions in almost all of the New England 

 states and in Pennsylvania and Vir- 

 ginia. Practically all of them have 

 been planted long enough for a definite 

 basis of profit calculation to be estab- 

 lished in accordance with the methods 

 used for making the plantation the 

 first cost, the use of other trees in mix- 

 ture, and the treatment after planting. 

 In all cases it must be understood 



