Under a thickly-branched tree in the northern part of one of the southern counties of Maine is a certain gray rock, matted over with dim green lichens that are spotted with dead gold. From under this rock springs a sparkling little stream. It is no storied fountain, rich with legends of splendor, poetry, and crime, but a dear, bright little Yankee brook, with the world all before it. That world it immediately proceeds to investigate. It creeps through thready grasses and russet pine-needles; it turns aside, with great respect, for a stone no larger than a rabbit; and when a glistening pitchy cone drops into it, the infant river labors under the burden. When the thirsty fawn comes there to drink, nearly the whole rivulet flows down its throat, and the cone is stranded high and dry; what there is left flows southward. A sunbeam pierces the scented gloom, creeps down a tree-trunk, steals over a knoll of green-and-brown tree-moss, which then looks like a tiny forest on fire, over yellow violets, which dissolve in its light, over a bank of rich dark mould veined with the golden powder of decayed pine-trees, moist and soft, and full of glistening white roots, where the flowers push down their pearly feet. Over the bank, into the water, goes the sunbeam, and the two frolic together, and the stream dives under the gnarled roots, so that its playmate would believe it lost but for that gurgle of laughter down in the cool, fresh dark. Then it leaps up, and spreads itself out in a mirror, and the elder-tree, leaning over to look at the reflection of its fan-like leaves and clusters of white flowers, gets very erroneous ideas concerning its own personal appearance; for the palpitating rings that chase each other over the surface of the water make the brown stems crinkle, the leaves come to pieces and unite again, and the many flowers in each round cluster melt all together, then twinkle out individually, only to melt again into that bloomy full moon. Over this shimmer of flowers and water big bees fly, buzzing terribly, dragon-flies dart, or hang, purple-mailed, glittering creatures, with gauzy wings, and comical insects dance there, throwing spots of sunshine instead of shadow down to the leafy bed. Then the brook flows awhile in a green tranquil shadow, till, reaching the interlaced roots of two immense trees that hold a bank between them, it makes a sudden, foamy plunge the height of a stag's front. She is a bride then, you may say--she is Undine, looking through that white veil, and thinking new thoughts.