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Rh which to deposit their spawn, and thousands of thorn Clever stop until they reach the great falls of the Snake River, more than six hundred miles from the sea; or, those of Clarke's Fork, a still greater distance. All the small tributaries of the Snake, Boise, Powder, Burnt, and Payette rivers swarm with them, in the months of September and October.

Great numbers of salmon die on having discharged their instinctive duty: some of them, evidently, because exhausted by their long journey, and others, apparently, because their term of life ends with arrival and spawning. Their six hundred miles of travel against the current, and exertion in overcoming rapids, or jumping falls, often deprives them of sight, and wears off their noses. Of course, all these mutilated individuals perish, besides very many others; so that the shores of the small lakes and tributaries of both branches of the Columbia are lined, in autumn, with dead and dying fish. But they leave their roe in the beds of these interior rivers, to replace them in their return to the sea by still greater numbers.

Besides the salmon of commerce, the Columbia furnishes a great many other species of edible fish, including salmon-trout, sturgeon, tom-cod, flounder, and smelt—all of which are excellent table-fish, in their proper seasons.