We have not many planted forests in this country old enough 

 to give complete information of what can be expected from them. 

 Therefore, we have to use natural growth in determining the yields 

 from prospective wood crops. The quantity produced will, on the 

 average, be less than what would be obtained from planted forests; 

 therefore, these figures are conservative. 



We have not yet had time to secure sufficient data in regard^to 

 the growth of white pine in this State, but careful examinations and 

 measurements have been made in New Hampshire and Mass- 

 achusetts which are just as reliable as a basis for computing future 

 growths in New York as in those states. 



The following yield table for white pine was constructed after 

 examining and measuring 177 sample plats in Massachusetts of 

 various ages in all parts of that State: 



YIELD TABLE FOR WHITE PINE.* 



* After Harold O. Cook, under the direction of F. W. Rane, State Forester of Massachusetts. 



This table indicates at a glance that much more timber can 

 be grown in the same period of time on good soil than on poor soil. 

 The highest production was found on the rich lowlands, where the 

 soil was deep, rich and moist, but withal well drained. The upland 

 pasture, our hillsides and upland plateaus, which form the largest 

 part of land where wood crops will be planted, is indicated by soil 

 quality two. The rate of growth here is not far below that of soil 

 quality one, because the pine finds its demands as regards moisture, 

 food supply, etc., well supplied. The third quality of soil consists 

 of the wet, cold, mucky swamps, or the most sterile drifting sands. 

 For the purpose of this publication soil of the second quality will 

 be considered, because this is the kind of soil that will most largely 

 be used for growing forest, raising crops of timber and wood materials. 



The table shows in a most striking manner how the quantity of 

 timber increases with the age of the forest. It, therefore, shows 

 what a short-sighted policy and poor financial plan it is to cut 

 growing forests. It will be seen that a forest thirty years old con- 



