The most welcome of companions, this plain countryman. One shall not meet with thoughts invigorating like his often; coming so scented of mountain and field breezes and rippling springs, so like a luxuriant clod from under forest-leaves, moist and mossy with earth-spirits. His presence is tonic, like ice-water in dog-days to the parched citizen pent in chambers and under brazen ceilings. Welcome as the gurgle of brooks, the dripping of pitchers,--then drink and be cool! He seems one with things, of Nature's essence and core, knit of strong timbers, most like a wood and its inhabitants. There are in him sod and shade, woods and waters manifold, the mould and mist of earth and sky. Self-poised and sagacious as any denizen of the elements, he has the key to every animal's brain, every plant, every shrub; and were an Indian to flower forth, and reveal the secrets hidden in his cranium, it would not be more surprising than the speech of our Sylvanus. He must belong to the Homeric age,--is older than pastures and gardens, as if he were of the race of heroes, and one with the elements. He, of all men, seems to be the native New-Englander, as much so as the oak, the granite ledge, our best sample of an indigenous American, untouched by the Old Country, unless he came down from Thor, the Northman; as yet unfathered by any, and a nondescript in the books of natural history. A peripatetic philosopher, and out of doors for the best parts of his days and nights, he has manifold weather and seasons in him, and the manners of an animal of probity and virtues unstained. Of our moralists he seems the wholesomest; and the best republican citizen in the world,--always at home, and minding his own affairs. Perhaps a little over-confident sometimes, and stiffly individual, dropping society clean out of his theories, while standing friendly in his strict sense of friendship, there is in him an integrity and sense of justice that make possible and actual the virtues of Sparta and the Stoics, and all the more welcome to us in these times of shuffling and of pusillanimity. Plutarch would have made him immortal in his pages, had he lived before his day. Nor have we any so modern as be,--his own and ours; too purely so to be appreciated at once. A scholar by birthright, and an author, his fame has not yet travelled far from the banks of the rivers he has described in his books; but I hazard only the truth in affirming of his prose, that in substance and sense it surpasses that of any naturalist of his time, and that he is sure of a reading in the future. There are fairer fishes in his pages than any now swimming in our streams, and some sleep of his on the banks of the Merrimack by moonlight that Egypt never rivalled; a morning of which Memnon might have envied the music, and a greyhound that was meant for Adonis; some frogs, too, better than any of Aristophanes. Perhaps we have had no eyes like his since Pliny's time.