INTRODUCTION 



The silvicultural notes contained in this pam- 

 phlet are intended both as a contribution to the 

 natural history of the White Pine and its neigh- 

 bors, and as a necessary adjunct to the tables. 

 The latter are intended, in part, to enable stu- 

 dents of the forest, lumbermen, and others to 

 ascertain the volume of standing Pine per tree 

 and per acre, in cubic and board feet, much 

 more easily and accurately than has hitherto been 

 possible, and to predict its increase in the same 

 units for any desired number of years. By the 

 use of these tables the relations between growth, 

 interest on capital invested, and current expenses 

 (such as taxes) cease to be matters of conjec- 

 ture, and become susceptible of easy calcula- 

 tion. Many other uses of the tables will be 

 developed in the course of the discussion. 



The tables and silvicultural notes are based 

 on measurements and other data obtained in 

 central Pennsylvania and northern New York. 

 The measurements of first- (or original-) growth 

 White Pine were all made in Pennsylvania, and 



