LOBLOLLY OR NORTH CAROLINA PINE. 163 



the trees removed in thinnings. In fixing stumpage values for the trees 

 in the younger stands a deduction has been made from the values given 

 in Tables 59 to 64 to allow for the difference in age. It is believed, how- 

 ever, that the stumpage in thinned stands at all ages after the first thin- 

 ning will be more valuable than that in unthinned stands of the same 

 age if, as recommended, the roughest dominant trees are removed in the 

 preliminary thinning and improvement cutting leaving as the basis for 

 the ultimate mature stand the clean stemmed intermediate and codomi- 

 nant trees. (Plates XVI; XVII.) On account of the high cost of 

 making thinnings the stumpage value of the trees removed in making 

 thorn has been placed at $2 per 1,000 board feet less than the stumpage 

 value of the timber in the entire stand. 



