Nor does their loss affect us and our times only. The species now being exterminated, not only in South America but everywhere on the globe, are, so far as we know, untouched by decadence. They are links in a chain, and branches on the tree of life, with their roots in a past inconceivably remote; and but for our action they would continue to flourish, reaching outward to an equally distant future, blossoming into higher and more beautiful forms, and gladdening innumerable generations of our descendants. But we think nothing of all this: we must give full scope to our passion for taking life, though by so doing we "ruin the great work of time;" not in the sense in which the poet used those words, but in one truer, and wider, and infinitely sadder. Only when this sporting rage has spent itself, when there are no longer any animals of the larger kinds remaining, the loss we are now inflicting on this our heritage, in which we have a life-interest only, will be rightly appreciated. It is hardly to be supposed or hoped that posterity will feel satisfied with our monographs of extinct species, and the few crumbling bones and faded feathers, which may possibly survive half a dozen centuries in some happily-placed museum. On the contrary, such dreary mementoes will only serve to remind them of their loss; and if they remember us at all, it will only be to hate our memory, and our age--this enlightened, scientific, humanitarian age, which should have for a motto "Let us slay all noble and beautiful things, for tomorrow we die." CHAPTER II. THE PUMA, OB LION OF AMERICA.