The same type of skull has also been obtained by the Rev. Canon Greenwell, from the neolithic tumuli of Yorkshire, along with the same group of animals as in the caves at Perthi-Chwareu, the _Bos longifrons_, goat, horse, dog, and stag; and Professor Rolleston, F.R.S., informs me that some of the associated human leg-bones are platycnemic. It is also recognized by Professor Huxley as identical with his river-bed type of skulls from alluvial deposits near Muskham in the valley of the Trent, Ledbury Hall in the valley of the Dove, and in Ireland from the bed of the Nore in Queen’s County, and from that of the river Blackwater. To it also Professor Huxley refers[121] five or six out of the seven skulls obtained by Mr. Laing from the stone cists in the burial mound at Keiss in Caithness, and associated with rude weapons and implements of bone and stone. They probably belonged to the inhabitants of the neighbouring burgh, or circular stone dwelling, in and around which were the broken bones of the following animal remains: the _Bos longifrons_, goat, stag, hog, horse, dog, fox, grampus or small whale, dolphin or some other small cetacean, great auk (_Alca impennis_, now extinct in Europe), lesser auk, cormorant, shag, solan goose, cod, lobster, and shell-fish. A lower jaw also of a child, broken after the same manner as other refuse bones, is considered by Professor Owen and Mr. Laing to prove that human flesh was sometimes used for food. The reindeer was living in the district at this time, since its remains have been identified by Dr. Campbell from the Harbour mound, one of the many refuse-heaps in the neighbourhood. The same kind of skull is also described by Professor Wilson under the name of “boat-shaped” or “kumbe-cephalic,” from the ancient stone chambers and tumuli of Scotland.[122] In the Table on the next page, showing the relative size and shape of the more important long skulls of Britain and Ireland, it will be seen that the extreme long-headedness of those from the long barrows is not possessed by those either of the caves and tombs of Denbighshire or of the river-bed type of Huxley, represented by the skulls from Muskham, Ledbury, Blackwater (Ireland), and Keiss. The greater breadth of the skulls from the caves and tombs of Denbighshire, as compared with those of the typical long skulls from the long barrows, may possibly be due to a mixture with the broad-headed race. In that case, however, none of the tallness, or prognathism, of the latter has been handed down. It is most probably a mere variation within the limits of one race, and is unaccompanied by the fusion of dolicho-cephalic with brachy-cephalic characters, such as M. Broca and Dr. Thurnam have observed in the skulls from tombs and caves in France.