93 



tween broad-leaved trees and for mixing singly 

 with the Weymouth pine. Between the home 

 pines it may find a place in small groups on 

 soils of Classes I., II., and III. Among firs and 

 spruces only large groups or pure plantations are 

 suggested. Sylvicultural characteristics, quality 

 of timber, and tanning material justify a wide use 

 of this tree. 



37. Fraxinus oregona. 



Experimental cultivation with this species is 

 advisable in localities similar to those in which 

 the native ash is grown. 



38. Abies amabilis. 



39. Abies concolor. 



40. Abies grandis. 



41. Abies nobilis. 



Trials with these firs possess a natural justifica- 

 tion only outside the natural territorial limits of 

 the home fir, but in similar climatic locations, 

 conditions of soil and raising are the same as the 

 native species requires. 



42. ChamcBcyparis lawsoniana. 



This, generally speaking, frost-hardy, fairly 

 rapid growing tree, which may be reckoned 

 among the shade-bearing species, yields useful 



