on foot. Here I entered upon an entirely different region,—a dry, open plain, with scanty vegetation. The most prominent plants were clusters of cactus and curua palms, a kind of stemless, low palm, with broad, elegant leaves springing vase-like from the ground. In these dry, sandy fields, rising gradually toward the serra, I observed in the deeper gullies formed by the heavy rains the laminated clays which are everywhere the foundation of the Amazonian strata. They here presented again so much the character of ordinary clay slates, that I thought I had at last come upon some old geological formation. Instead of this I only obtained fresh evidence that, by baking them, the burning sun of the tropics may produce upon laminated clays of recent origin the same effect as plutonic agents have produced upon the ancient clays, that is, it may change them into metamorphic slates. As I approached the serra, I was again reminded how, under the most dissimilar circumstances, similar features recur everywhere in nature. I came suddenly upon a little creek, bordered with the usual vegetation of such shallow water-courses, and on its brink stood a sand-piper, which flew away at my approach, uttering its peculiar cry, so like what one hears at home that, had I not seen him, I should have recognized him by his voice.
After an hour's walk under the scorching sun, I was glad to find myself at the hamlet of Erreré, near the foot of the serra, where I rejoined my companions. It was already noon, and they had arrived some time before. They had, however, waited breakfast for me, to which we all brought a good appetite. Breakfast over, we slung our hammocks under the trees, and during the heat of the day enjoyed the rest which we had so richly earned.
A BUNDLE OF BONES.
And a very large bundle it was, as it lay, in disjecta membra, before the astonished eyes of the first learned palæontologist who gazed, in wondering delight, on its strange proportions. As it rears its ungainly form some eighteen feet above us, Madam, you may gather some idea of what it was in its native forests, I don't know how many hundreds of thousands of years ago. You need not snuggle up to me so, Tommy. The creature is not alive, unless it is enjoying Sydney Smith's idea of comfort, and, having taken off its flesh, is airing itself in its bones. Megatherium was a very proper name for it, if not a very common one; for large animal it was, beyond any dispute, and could scarcely have been much of a pet with the human beings of old, unless "there were giants in those days," and enormous ones at that. How Owen must have gloated over that treasure-trove! Captain Kyd's buried booty would have been worse trash to him than Iago's stolen purse, beside this unearthed deposit of an antediluvian age. Its missing caudal vertebræ would outweigh now, in his anatomical scales, all the hidden gains of the whole race of pirates, past, present, and to come. Think of those bones with all the original muscle upon them! Why, they would outweigh all the worthy members of the Boston Society of Natural History together, unless they are uncommonly obese. Where could Noah have stowed a pair of such enormous beasts, supposing that they existed as late as when the ark was launched? Sloth, indeed! I am inclined to think the five or six tons of flesh these bones must have car-
