"Yes; you are really learning to distinguish trees very well. There are several species--the white, red, black and mountain ash. The white ash is a graceful tree, rising in the forest to the height of seventy or eighty feet, with a straight trunk and a diameter of three feet or more at the base. On an open plain it throws out its branches, with a gentle double curvature, to a distance on every side, and forms a broad, round head of great beauty. The flowers of the ash are greenish white in color and appear with the leaves in loose clusters. 'The trunk of our largest American ash is covered with a whitish bark which in very young trees is nearly smooth; on older trees it is broken by deep furrows into irregular plates, and on very old stems it becomes smooth again, from the rough plates scaling off. The branches are grayish green dotted with gray or white.' Now who can tell _me_ something about this tree?"