424 



The Book of Woodcraft 



weighs 36 lbs. Leaves 2 to 3 inches long. It has a black 

 triangular scar at each armpit. Que. south to Md. 



White, Canoe or Paper Birch (Betula papyrifera) 



A tall forest tree up to 80 feet high; the source of bark for 

 canoes, etc. One of the most important trees in the north- 

 ern forest. Besides canoes, wigwams, vessels and paper 

 from its bark, it furnishes syrup from its sap and the irmer 

 bark is used as an emergency food. Every novice redis- 

 covers for himself that the outer bark is highly inflammable 

 as well as waterproof, and ideal for fire-lighting. Though 

 so much like the Gray birch, it is larger, whiter, and with 



but small black scars at each limb. The timber is much 



the same, but this weighs 37 lbs. Its leaf and catkin 



distinguish it; the former is 2 to 3 inches long. All 

 Canada and south to 111. 



Yellow Birch, Gray Birch (Betula luiea) 



A forest tree, of 30 to 50 feet height. Bark obviously 

 birch, but shaggy and gray or dull yellow. Wood as in 

 the others, but reddish. A cubic foot weighs 41 lbs. 



