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hard to look upon, but pleasing, satin-like and finished. 

 Look closely at the beautiful compound leaves of this 

 tree. They are about five to eight inches in length and 

 are made up of from six to eight pairs of leaflets, with 

 an odd one at the end. These leaflets, downy beneath, 

 are beautifully cut (serrate), and, note this especially, 

 they are obtuse at the end. This feature marks them at 

 once from any confusion with our native species. The 

 leaflets of our native mountain ash are all distinctly 

 sharp pointed. There are many other differences be- 

 tween the two trees, but if you are in doubt whether the 

 tree is native or foreign, look at the leaflets, a glance 

 will tell you. If the tree is not in foliage, look at the 

 winter buds. Those of the European are very densely 

 tomentose (hairy) while those of the American are 

 generally smooth, sometimes very slightly hairy. The 

 flowers appear in May, in dense, broad, showy cymes 

 of creamy-white, fully half a foot wide. They are very 

 handsome. The blossoms are succeeded by brilliant 

 scarlet or orange-red berries in heavy clusters. The 

 berries of the European mountain ash are larger than 

 those of our own tree and are much more showy. 



IJlmus campestris, var. strieta purpurea. (^Purple- 

 leaved English Elm. No. 14.) You will find this tree 

 on the left of the Walk as you go west from One Hun- 

 dred and Sixth Street Gate, not far from the fourth 

 fork of the Walk. It stands just beyond a white mul- 

 berry tree. The mulberry has mitten-shaped leaves, 

 glossy on the uppersides. It stands just beyond a 

 beautiful striped maple. The purple-leaved elm is 

 very beautiful in early spring, just as its leaves come 



