THE WILLOW TKIBE. 



87 



The alder is less remarkable for its uses; but 

 there is a bitter principle in its bark which has 

 been employed medicinally." 



BLOSSOM OJ? WILLOW. 



" I have thought of some other trees with cat- 

 kins," said Mary. "All the willows and poplars 

 seem to have them ; for I have seen them on the 

 weeping willow that grows by the water, and on 



