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silver. This is the peculiar charm of the Bhotan, and 

 is due to its very long (ten inches or more) needles 

 which are so fine and slender that they dance at the 

 slightest zephyr. These leaves are five in a fascicle 

 or bundle. 



Continue along this Walk until it next meets the 

 Drive. In its left-hand corner, close by the Drive, 

 you will see a low, sprawling growth. Its flat, pointed, 

 two-ranked leaves, dark green above, yellowish-green 

 on the undersides, tell you it is of the English yew 

 stock. It is the prostrate yew, and grows in this low 

 sprawling, crab-like way. 



Cross the Drive here and take up the Walk on the 

 other side. Two handsome pin oaks guard its either 

 corner. Follow the Walk on, to its branching, and 

 take the right fork, to the next branch, which sends 

 off its left fork to the north. In the angle of this 

 fork you will find Norway maple. If you take the left 

 (northerly) branch here, and follow it along a little, 

 you will pass, back from the Walk, a short distance, 

 up a gentle slope of bank, two ash trees. They are 

 interesting, because they are good types of the Amer- 

 ican ash and the European ash, growing side by side, 

 and so are easily accessible for comparison and study. 

 The one to the north is the American species (with 

 stalked leaflets), the one to the south is the European 

 species (with leaflets almost sessile). 



Let us come back now to the West Ninetieth Street 

 Gate, and take the Walk that trends southerly. Al- 

 most as you turn off to the right, you are half hidden 

 by the masses of shrubberies that rise on either side of 



