"It is very quaint, I think, but I do not dislike it: it is like seeing faces in pansies; and some people are full of these odd imaginations. There is a kind of locust, called the clammy-barked, found in the Southern parts of the United States, which is a smaller tree than the common locust and has large pale-pink flowers, while the rose acacia is a very beautiful flowering shrub. The sweet, or honey, locust is another variety, which is also called the three-thorned acacia, because the thorns consist of one long spine with two shorter ones projecting out of it, like little branches, near its base. This is said to display much of the elegance of the tropical acacia in the minute division and symmetry of its compound leaves. These are of a light and brilliant green and lie flat upon the branches, giving them a fan-like appearance such as we observe in the hemlock." "But why is it called honey-locust?" asked Malcolm. "Do the bees make honey in the trunk?" "No," replied his governess; "the name comes from the sweetness of the pulp around the seeds, which ripen in large flat pods, and of which boys and girls are fond. But the flowers of this species are only small greenish aments. Locust-wood is very durable, and, as it will bear exposure to all kinds of weather, it is much used in shipbuilding and as posts for gates. It is thought that the shittah and shittim wood of the Bible, of which Moses made the greater part of the tables, altars and planks of the tabernacle, was the same as the black acacia found in the deserts of Arabia and about Mount Sinai and the mountains which border on the Red Sea, and is so hard and solid as to be almost incorruptible. "And now," added Miss Harson, "reading of the numerous relations of the locust, considering that 'the acacia, not less valued for its airy foliage and elegant blossoms than for its hard and durable wood; the braziletto, logwood and rosewoods of commerce; the laburnum; the furze and the broom, both the pride of the otherwise dreary heaths of Europe; the bean, the pea, the vetch, the clover, the trefoil, the lucerne--all staple articles of culture by the farmer--are so many species of Leguminosae, and that the gums Arabic and Senegal, kino and various precious medicinal drugs, not to mention indigo, the most useful of all dyes, are products of other species,--it will be perceived that it would be difficult to point out an order with greater claims upon the attention.'" CHAPTER XVI. _THE WALNUT FAMILY AND THE AILANTHUS_. "The walnut family," said Miss Harson, "with the ugly name _Juglandaceae_, are distinguished by pinnate, or compound, leaves, which have an aromatic odor when crushed, and by blossoms in catkins. Of these trees, the black walnut is one of the handsomest and most highly prized." "Are there any of them here?" asked Malcolm. [Illustration: THE WALNUT TREE.]