"In the order of the universe we find that the use of mosses is primarily to other and more . They are spread at the roots of trees, and by their depth keeps the warmth about them in winter, and the moisture in summer, which are necessary to their growth. But when they grow on their trunks and branches, mosses injure trees, by clogging their breathing pores. We next find that mosses are useful to the insect tribe, countless numbers of which find homes among their branches, and roam about in their shades as in mighty forests, and look with their thousand eyes upon the wonders of their gauzy leaves, and sun their wings of purple and gold, and burnish their shining armour upon the polished columns of their urns. Over her nest the constructs a dome of moss; and ascending higher yet, we find the bird's nest "built of wool and hay and moss.""