We have had the pleasure of seeing the specimen described by Mr. Lawrence, and entirely coincide with him in his conclusion. It is precisely similar to others that have come under our notice, and all presenting the same peculiar specific characters. [Illustration: Plate 10 The Black Brant Bernicla migricans (_Lawrence_)] To the gunners of Philadelphia this bird is known by the same name, and we have seen several specimens which have been shot in Delaware Bay, and at various points on the sea-coast. Our friend Mr. John Krider, Gunsmith, whose establishment is a favourite place of resort of the Ornithologists and gunners of this city, and who is well acquainted with American birds, and very successful in obtaining specimens of rare species, has had several specimens of this Brant brought to him within the last two or three years. It must, however, be considered as a species of rather unusual occurrence on the Atlantic coast, but perhaps not more so than the Snow Goose, and others which are well known. As is the case with the birds just mentioned, it is probable, too, that the migration of this Brant does not commonly reach so far southward as the latitude of either of the large cities on the Atlantic. Several species of Geese, which appear to be unknown to Naturalists, have been noticed by travellers in various parts of North America, but especially in the northern and Arctic regions. Of these we shall give an account, somewhat in detail in a succeeding article; at present, we are acquainted with one allusion only, which we think it not improbable has reference to the species now before us. It is in Sir John Richardson’s “Arctic Searching Expedition,” a journal of a Boat voyage through Rupert’s land and the Arctic Sea, in search of the discovery ships under command of Sir John Franklin, London, 1851, New York, 1852. In citing an account of the valley of the Yukon river, in about lat. 66° north, long. 147° west, contained in a letter to him from Mr. Murray, a resident in that country, the following statements occur (American edition, p. 305): “White Geese (Snow Geese, _Chen hyperboreus_) are also passengers here; and there are likewise _Black Geese_, which I presume you have never seen. A few of them pass down Peel’s River, but they are more abundant on the Yukon. They are very handsome birds, considerably smaller than the White Geese, and have a dark brown or brownish black colour, with _a white ring round the neck_, the head and bill having the shape of that of the Bustard (the Canada Goose, _Anser Canadensis_). The Black Geese are the least numerous, and the latest that arrive here. They fly in large flocks with remarkable velocity, and generally pass on without remaining as the others do, some days to feed. When they alight, it is always in the water; and if they wish to land, they swim ashore. They are very fat, and their flesh has an oily and rather disagreeable taste.