SPECIES OF WOODS. 



81 



Physical Qualities: Weight, light 

 (51st in this list) ; 25 Ibs. per cu. ft., sp. 

 gr., 0.4051 ; medium strong (42d in this 

 list) ; elastic (29th in this list) ; soft 

 (58th in this list) ; shrinks 3 per cent; 



warps ; fairly durable ; easy to 



work, satiny surface; splits readily. 



Common Uses: Lumber and paper 

 pulp; (not distinguished from Red and 

 Black Spruce in market). 



Remarks : Wood very resonant, hence 

 used for sounding boards. The most im- 

 portant lumber tree of the sub-arctic 

 forest of British Columbia. 



Radial Section, 

 life size. 



Cross-section, 

 magnified ZT 1 A diameters. 



Tangential Sectiot 

 life size. 



