62 



THE WHITE PINE 



basal area of the group by the mimber of trees. 

 The result will be the basal area of the average 

 tree, from which the diameter may easily be 

 obtained. The average height and age of a 

 group are the same as the height and age of the 

 average tree. 



Below is given a summary of the valuation 

 surveys, in which the most essential points are 

 noted. It will be seen that in most cases only 

 the generic name is given, and that the names 

 of the species in mixture are abbreviated. The 

 abbreviations are as follows : 



A. Ash 



B. Birch 

 Bch. Beech 



Ced. White Cedar {TJiii- 



ja occidentalism L.) 

 Ch. Chestnnt 

 Cy. Black Cherry 

 Fr. Balsam Fir 

 Gm. Black Gum 

 H. Hickory 

 Hm. Hemlock 



I. Iron wood (Ostrya vir- 



giniana, K. Kocli.) 

 JP. J ack or Pitch Pine 

 M. Maple 

 NP. Norway Pine 

 O. Oak 

 Pop. Poplar 

 Sp. Spruce 



Tu. YeUow Poplar or Tulip 

 Tree 



