Perhaps none of our common herbs promises better, as a honey plant, than the one in question. It is a very hardy perennial, and once introduced in waste places, it is sure to hold its own, until it becomes desirable to extirpate it, when, at man's bidding, it quickly lets go its hold, so that it is not a dangerous plant to introduce. The blossoms appear at this place about June 25th, and persist for a full month, and during the entire time are crowded with bees, whatever may be the character of the weather, whether wet or dry, warm or cool, whether the plant is in the midst of honey plants or isolated. We are thus assured that the plant is constantly secreting nectar, and is also a favorite with bees. Rape, mustards and borage seem indifferent to the weather, but are not favorites with the bees. Motherwort, then, has three admirable qualities: It is long in bloom, the flowers afford fine honey at all times, and it is a favorite with the bees. If it could be made to bloom about three weeks later, coming in just after basswood, it would have nearly all the desired qualities. I think that we might bring this about by mowing the plants in May. I am led to this opinion from the fact that some plants which we set back by transplanting in May, are still in bloom this August 10th, and are now alive with, bees, dividing their attention with the beautiful cleome, which, is now in full bloom, and fairly noisy with bees. [Illustration: Fig. 115.] DESCRIPTION OF THE PLANT. The stalk is square (Fig. 114), branching, and when cultivated, attains a height of some four feet; though, as it grows in waste places, it is seldom more than three feet. The branches, and also the leaves, are opposite (Figs. 114 and 115), and in the axiles of the latter are whorls of blossoms (Figs. 115 and 116), which succeed each other from below to the top of the branching stems. The corolla is like that of all the mints, while the calyx has five teeth, which are sharp and spine-like in the nutlets as they appear at the base of the leaves (Fig. 115). As they near the top, the whorls of blossoms and succeeding seeds are successively nearer together, and finally become very crowded at the apex (Fig. 116). The leaves are long and palmately lobed (Fig. 115). The small blossom is purple. [Illustration: Fig. 116.] THE SOUR-WOOD TREE. The sorrel tree (_Oxydendrum arboreum_) (Fig. 117), so called because of the acidity of the leaves, is a native of the South, but has been grown even as far north as New York. It often attains no mean dimensions in its native home along the Alleghanies, often reaching upward more than fifty feet, and acquiring a diameter of twelve or fifteen inches. [Illustration: Fig. 117.]