Canadian Forestry Journal, April, 1918 



1635 



No Nrnj LnND/A'CnNiiDn 



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WORK! 



PUT OUT YOOR CAMP FIREX- POT THEM 



DEAD OUT! 

 CRNRDH need; HER FOREJTJ HI NEVER BEFORE 



Canadian Forestry Association 



2. Another example of Canadian Forestry Association cartoons exhibited between reels 

 in picture theatres. 



on the usual cactus form. Larch 

 seedlings appear to be no exception 

 to this rule. For some years after 

 the seeds have sprouted, the plants 

 retain their leaves thr-^ugh the winter, 

 but when older, they throw them 

 off. It seems, therefore, that the 

 larches were once like the other 

 evergreen cone-bearers, and have 

 since adopted the deciduous habit. 

 A similar condition exists today 

 among genera, represented in both 

 the tropics and temperate zones. 

 In the tropical rain forest, the species 

 are deciduous. Tropical oaks are 

 evergreen and those of northern 

 regions are deciduous, but even in 



the latter regions seedling oaks often 

 retain their leaves through the win ler. 

 The deciduous habit is very appar- 

 ently an adaptation to avoid the 

 drying effects of the cold. Only 

 in the dried parts of the tropics 

 do the broad-leaved trees drop their 

 leaves and then it is for the same 

 reason — to avoid injury through 

 drouth. — The American Botanist. 



The Forestry Journal will be 

 sent to any address in Canada 

 for One Dollar a Year. 



