This letter was accompanied with the following “Statement” by Mr. George Clark, Master of the Government School at Mahébourg, Island of Mauritius:— “On the estate called ‘Plaisance,’ about three miles from Mahébourg, in the island of Mauritius, there is a ravine of no great depth or steepness, which, apparently, once conveyed to the sea the drainings of a considerable extent of circumjacent land, but which has been stopped to seaward, most likely for ages, by an accumulation of sand extending all along the shore. The outlet from this ravine having been thus impeded, a sort of bog has been formed, called ‘La Mare aux Songes,’ in which is a deposit of alluvium, varying in depth, on account of the inequalities of the bottom, which is formed of large masses of basalt, from three to ten or twelve feet. The proprietor of the estate a few weeks ago conceived the idea of employing this alluvium as manure; and shortly after, the men began digging in it; when they had got to a depth of three or four feet they found numerous bones of large tortoises, among which were a carapace and a plastron pretty nearly entire, as also several crania. “When I heard of this, it immediately struck me that the spot was one of the most likely possible to contain bones of the Dodo, and I gave directions to the men working there to look out for any bones they might find. Nothing, however, was turned up but a fragment of what I supposed to be the humerus of a large bird. This encouraged me to look further; and my search was rewarded by the discovery of several tibiæ, more or less perfect, two tarsi, one nearly perfect pelvis, and fragments of three others. “These were found imbedded in a black vegetable mould, the lighter-coloured specimens being near the springs. My reasons for believing these to be remains of the Dodo are:—the certainty that that bird once existed in Mauritius; the similarity of these bones to what the representations of the Dodo which I have seen would lead one to expect, particularly the breadth of the pelvis, the stoutness of the tibiæ and tarsi, and the shortness of the latter; the favourable nature of the spot in which they were found for the haunts of such birds when living—a sheltered hollow with two springs in it; the non-existence, actual or traditional, in Mauritius of any bird to which bones such as these could have belonged; the indubitable antiquity of these bones, proved by the deposit of alluvium which covered them.