Fragment. Notes for a Law Lecture
NIAGARA FALLS! By what mysterious power is it that millions and millions are drawn from all parts of the world to gaze upon Niagara Falls? There is no mystery about the thing itself. Every effect is just as any intelligent man, knowing the causes, would anticipate without seeing it. If the water moving onward in a great river reaches a point where there is a perpendicular jog of a hundred feet in descent in the bottom of the river, it is plain the water will have a violent and continuous plunge at that point. It is also plain, the water, thus plunging, will foam and roar, and send up a mist continuously, in which last, during sunshine, there will be perpetual rainbows. The mere physical of Niagara Falls is only this. Yet this is really a very small part of that world's wonder. Its power to excite reflection and emotion is its great charm. The geologist will demonstrate that the plunge, or fall, was once at Lake Ontario, and has worn its way back to its present position; he will ascertain how fast it is wearing now, and
139so get a basis for determining how long it has been wearing back from Lake Ontario, and finally demonstrate by it that this world is at least fourteen thousand years old. A philosopher of a slightly different turn will say, "Niagara Falls is only the lip of the basin out of which pours all the surplus water which rains down on two or three hundred thousand square miles of the earthy surface." He will estimate with approximate accuracy that five hundred thousand tons of water fall with their full weight a distance of a hundred feet each minute--thus exerting a force equal to the lifting of the same weight, through the same space, in the same time. And then the further reflection comes that this vast amount of water, constantly pounding down, is supplied by an equal amount constantly lifted up, by the sun; and still he says, "If this much is lifted up for this one space of two or three hundred square miles, an equal amount must be lifted up for every other equal space;" and he is overwhelmed in the contemplation of the vast power the sun is constantly exerting in the quiet noiseless operation of lifting water up to be rained down again.
But still there is more. It calls up the indefinite past. When Columbus first sought this continent--when Christ suffered on the cross-- when Moses led Israel through the Red Sea --