INTRODUCTION. 



In 1908 the State Forester published, under the title 

 "Forest Mensuration of the White Pine," a booklet contain- 

 ing most of the data on the white pine included in this bulletin. 

 A second edition was published in 1911, and as that is now 

 exhausted a third edition seems necessary. Since the original 

 investigation of the white pine was made the Department has 

 also collected similar data on other species, and the Depart- 

 ment of Forestry at Harvard University has in its research 

 work published a large amount of information along similar 

 lines. It seemed to the Commissioner of Conservation that 

 these tables, many of which are very valuable and interesting 

 to the forest owner, should be made available for use of the 

 general public by including them with the original material. 

 Director R. T. Fisher of the Harvard Forest has very graciously 

 accepted this suggestion, and has turned his material over to 

 us for use in this bulletin. To Mr. H. 0. Cook, M.F., the 

 author of the original bulletin on white pine mensuration, has 

 been assigned the task of compiling and editing the present 

 publication. 



WM. A. L. BAZELEY, 

 Commissioner of Conservation. 



