whilst the sea was peopled with most of its present inhabitants."[14]
Of the remains of the Mylodon, and of that strange semi-aquatic creature the Toxodon, he says, they appeared so fresh that it was difficult to believe they had lain buried for ages under ground. The bones were so fresh, that they yielded, on careful analysis, seven per cent. of animal matter, and when heated in the flame of a spirit-lamp, they not only exhaled a very strong animal odour, but actually burned with a small flame.
Mr. Darwin's interest was excited by the evidences everywhere present of the immensity of this extinct population. "The number of the remains imbedded in the great estuary-deposit which forms the Pampas, and covers the gigantic rocks of Banda Oriental, must be extraordinarily great. I believe a straight line drawn in any direction through the Pampas would cut through some skeleton or bones. … We may suppose that the whole area of the Pampas is one wide sepulchre of these extinct gigantic quadrupeds."[15]
The whole plain of South America from the Rio Plata to the Straits of Magellan has been raised from the sea within the species-life of the existing sea-shells, the old and weathered specimens of which, left on the surface of the plain, still partially retain their colours! Darwin infers, as certain, from data which he has adduced, that the Macrauchen, that strange giraffe-necked pachyderm, lived long after the sea was inhabited by its present shells, and when the vegetation of the land could not have been other than it is now. And if the Macrauchen, then the Toxodon, the Scelidothere, the Megathere, the Mylodon, the Glyptodon, the Glossothere, and all the rest of the quaint but mighty host of gone giants, that once thronged these austral plains.
Evidence for the recent existence of the colossal ostrich-like birds of New Zealand is stronger still. It is about twenty-one years since the first intimation was given to scientific Europe of the remains of such animals, through some bones sent by the Rev. W. Williams to Dr. Buckland. From these, and a collection soon afterwards sent home, Professor Owen established the genus Dinornis, identifying five species, the largest of which, D. giganteus, he concluded to have stood about ten feet in height. The remains have since been obtained in great profusion, and the result of further investigations by the Professor has been the establishment of three other genera, viz., Palapteryx, Nestor, and Notornis—the latter a large bird allied to the Rails and Coots.
A very interesting communication from Mr. Williams accompanied one of the consignments, extracts of which I will quote. It bears date "Poverty Bay, New Zealand, 17th May 1842." "It is about three years ago, on paying a visit to this coast, south of the East Cape, that the natives told me of some extraordinary monster, which they said was in existence in an inaccessible cavern on the side of a hill near the river Wairoa; and they shewed me at the same time some fragments of bone taken out of the beds of rivers, which they said belonged to this creature, to which they gave the name of Moa. When I came to reside in this neighbourhood I heard the same story a little enlarged; for it was said that this creature was still existing at the said hill, of which the name is Wakapunake, and that it is guarded by a reptile of the Lizard species, but I could not learn that any of the present generation had seen it. I still considered the whole as an idle fable, but offered a large reward to any who would catch me either the bird or its protector." These offers procured the collection of a considerable number of fossil bones, on which Mr. Williams makes the following observations:—
"1. None of these bones have been found on the dry land, but are all of them from the banks and beds of fresh-water rivers, buried only a little distance in the mud. … All the streams are in immediate connexion with hills of some altitude.
"2. This bird was in existence here at no very distant time, though not in the memory of any of the inhabitants: for the bones are found in the beds of the present streams, and do not appear to have been brought into their present situation by the action of any violent rush of waters.
"3. They existed in considerable numbers—(an observation which has since been abundantly confirmed.)
"4. It may be inferred that this bird was long-lived, and that it was many years before it attained its full size. (The writer grounds this inference on the disparity in dimensions of the corresponding bones, supposing that they all belonged to one and the same species; which, however, was an erroneous assumption.)
"5. The greatest height of the bird was probably not less than fourteen or sixteen feet. The leg-bones now sent give the height of six feet to the root of the tail.
"Within the last few days I have obtained a piece of information worthy of notice. Happening to speak to an American about these bones, he told me that the bird is still in existence in the neighbourhood of Cloudy Bay, in Cook's Straits. He said that the natives there had mentioned to an Englishman belonging to a whaling party, that there was a bird of extraordinary size to be seen only at night, on the side of a hill near the place, and that he, with a native and a second Englishman, went to the spot; that, after waiting some time, they saw the creature at a little distance, which they describe as being about fourteen or sixteen feet high. One of the men proposed to go nearer and shoot, but his companion was so exceedingly terrified, or perhaps both of them, that they were satisfied with looking at the bird, when, after a little time, it took the alarm, and strode off up the side of the mountain.
"This incident might not have been worth mentioning, had it not been for the extraordinary agreement in point of the size of the bird [with my deductions from the bones]. Here are the bones which will satisfy you that such a bird has been in existence; and there is said to be the living bird, the supposed size of which, given by an independent witness, precisely agrees."
The story told of the whaler appears to me to bear marks of truth. The bold essay to explore, the terror inspired by the gigantic figure, especially in the solemnity of night, the description of the manners of the bird running and striding, so like those of the Apteryx, with which its bones shew the Moa to have been closely allied, and the inglorious return of the party without achieving any exploit, are all too natural to permit the thought that no more than inventive power has been at work.
And well may the colossus have inspired fear. The bones sent to London greatly exceed in bulk those of the largest horse. The leg-bone of a tall man is about one foot four inches in length, and the thigh of O'Brien, the Irish giant, whose skeleton, eight feet high, is mounted in the Museum of the Royal College of Surgeons, is not quite two feet. But the leg-bone (tibia) of the Dinornis we know measured as much as two feet ten inches, and we have no reason to suppose, considering the disparity that exists in the specimens examined, that we have seen by any means the largest.
Additional reason for supposing these magnificent birds to have existed not long ago, is found in the fact that specimens of their eggs have been preserved. The circumstances attendant on the discovery and identification of these possess a remarkable interest. In the volcanic sand of New Zealand Mr. Walter Mantell found a gigantic egg, which we may reasonably infer to be that of either Dinornis or Palapteryx, of the magnitude of which he gives us a familiar idea by saying that his hat would have been but just large enough to have served as an egg-cup for it. This is the statement of a man of science, and therefore we may assume an approximate degree of precision in the comparison.
I do not know the size of Mr. Mantell's hat, but I find that the transverse diameter of my own is six inches or a little more. If we may take this as the shorter diameter of the ovoid, the longer would probably be about eight and a half inches; dimensions considerably greater than those of the Ostrich's egg (which are about six and a quarter in length), but not what we should have expected from a bird from twelve to fourteen feet in height. And this the rather when we consider that the egg of the New Zealand Apteryx, to which these birds manifest a very close affinity, is one of
