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BIOGRAPHICAL SKETCH.
19

The result of the recent survey of the Water Commissioners appointed by the State of Massachusetts he had reached by his private experiments, several years earlier. Every fact which occurs in the bed, on the banks, or in the air over it; the fishes, and their spawning and nests, their manners, their food; the shad-flies which fill the air on a certain evening once a year, and which are snapped at by the fishes so ravenously that many of these die of repletion; the conical heaps of small stones on the river-shallows, one of which heaps will sometimes overfill a cart,—these heaps the huge nests of small fishes; the birds which frequent the stream, heron, duck, sheldrake, loon, osprey; the snake, musk-rat, otter, woodchuck, and fox, on the banks; the turtle, frog, hyla, and cricket, which make the banks vocal,—were all known to him, and, as it were, townsmen and fellow-creatures; so that he felt an absurdity or violence in any narrative of one of these by itself apart, and still more of its dimensions on an inch-rule, or in the exhibition of its skeleton, or the specimen of a squirrel or a bird in brandy. He liked to speak of the manners of the river, as itself a lawful creature, yet with exactness, and always to an observed fact. As he knew the river, so the ponds in this region.

One of the weapons he used, more important than microscope or alcohol-receiver to other investigators, was a whim which grew on him by indulgence, yet appeared in gravest statement, namely, of extolling his own town and neighborhood as the most favored centre for natural observation. He remarked that the Flora of Massachusetts embraced almost all the important