According to Professor Boyd Dawkins, the Round Barrow race must have been Goidels, and not Wends, Finns, or Slaves, because the latter would not have subsequently retreated eastward ‘against the current of the Celtic, Belgian, and German invasions’;[1926] while the late Canon Isaac Taylor[1927] affirmed that the skulls of the well-known ‘Sion type’, which by some anthropologists are believed to have belonged to the Celtic Helvetii, resembled those of the round barrows.
Now the view that the tall brachycephalic people of the round barrows were the Belgae is so utterly absurd that it is difficult to conceive how writers who posed as authorities on ethnology could ever have entertained it.[1928] If some benighted classical scholar had ascribed the Copernican system to Ptolemy, one may imagine how he would have been derided by scientists; yet such a blunder would not have been different in degree from that which Thurnam committed and Huxley approved. For the Belgic invasion began, at the earliest, in the third, and, as Professor Rhys himself maintains,[1929] in the second century before the Christian era; and the first invaders of the Round Barrow race landed in Britain, at the latest, about 1400 B.C.,[1930] and probably several centuries earlier. The argument which Thurnam bases upon the alleged similarity between Round Barrow skulls and some which have been exhumed from French dolmens has no weight. To begin with, the theory that any Celtic-speaking people invaded Gaul in the Neolithic Age is contrary to historical and archaeological evidence;[1931] and, assuming that they did, the resemblance between the skulls to which Thurnam refers and most of those of the tall Round Barrow skeletons is purely superficial. Any one may convince himself of this who will take the trouble to compare the illustrations of Round Barrow skulls in _Crania Britannica_ with those in _Crania Ethnica_; and Thurnam himself in more than one passage[1932] admits, indeed emphasizes, the distinction. Even Broca[1933] denied that there was any physical affinity between the tall brachycephali of the round barrows and the [so-called] ‘real Celts of Gaul’; and, as we shall see presently, by the latter he simply meant the brachycephalic people, descended from neolithic ancestors, that formed the substratum of the population whom Caesar called Celtae. Similarly Dr. Beddoe truly says that the [characteristic] Round Barrow skulls resemble those of Borreby in the Danish island of Falster, rather than those of Broca’s Celtae.[1934] It is true indeed, as we have seen, that some of the Round Barrow skulls resemble some of the neolithic French skulls; but, speaking generally, the former are far more rugged and in every way more strongly marked than the latter.[1935]