Directly back of it is a shagbark hickory with com- 

 pound leaves of five leaflets and a noticeably shaggy 

 bark. Opposite the westerly end of the Arbor, across 

 the Walk, is American hornbeam, and a little southeast 

 of the hornbeam, up the slope of the hillside, is the 

 small-fruited hickory, a variety of pignut hickory. 



Continuing along the Walk from the Arbor, you 

 pass, on your left, black cherry, with rough, scaly 

 bark, and, very near the next fork of the path, Taxus 

 cuspidata, English yew, Taxus cuspidata and Nord- 

 mann's silver fir. The fir stands nearly in the point of 

 the fork, and has light silver-gray bark and linear 

 leaves, dark glossy-green on the upper sides, but 

 marked on the lower by silvery lines. The leaves are 

 about an inch long and are distinctly dentate (toothed) 

 at the tip. The boughs have a flattish look, due to the 

 horizontal growth of the branches and also to incurv- 

 ing of the leaves. 



As you continue, southerly now, about opposite the 

 donkey tent, you will see, on your right, three trees 

 which look, at first glance, very much like Austrian 

 pines. They are not Austrian, but Corsican pines, 

 slender-leaved varieties of the Austriaca. Up the hill, 

 back of these, is a cluster of English oaks, among them 

 a fastigate form, known as pyramid oak, with branches 

 which grow up close beside the main trunk of the tree 

 like a Lombardy poplar. The English oaks you can 

 know by their round-lobed leaves distinctly eared at 

 the base. In between the group of English oaks and 

 the most southerly of the Corsican pines, fine and 

 feathery, with soft, waving, plume-like sprays of foli- 



