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]

More striking, however, than the contrast between the skulls of the characteristic Round Barrow skeletons and those of the French brachycephalic neolithic race is the discrepancy in stature. The average height of the former was, as we have seen, on the lowest computation, 5 feet 8⅖ inches; that of the latter was very little over 5 feet.[1936] Moreover, while the brachycephalic Finns and Danes and the few modern brachycephalic inhabitants of England are generally tall or moderately tall and fair, those of France and Central Europe are generally not only short but dark.[1937]

The argument that since the Long Barrow skulls were pre-Aryan, those of the round barrows must have been Celtic, begs the question. As we shall see presently, there are other skulls in museums, which belong to neither type, and which undoubtedly are Celtic. What reason is there to deny that the earlier brachycephalic invaders who were buried in round barrows may, as Mr. C. H. Read[1938] reasonably suggests, have been pre-Aryan? The British Celts of the later Bronze Age were doubtless cremated; and therefore their skulls are not forthcoming. And if the resemblance between the cremation interments of the round barrows and those described by Caesar proved that the former were all Celtic, it would also prove that they were Greek![1939]

In answer to Professor Boyd Dawkins it may be said that if the tall Round Barrow race were not Finns or Slaves, it does not follow that they were Goidels. And supposing that they were Finns or Slaves, why should it be necessary to assume that they ‘subsequently retreated eastward against the current of the Celtic, Belgian, and German invasions’? Or that they retreated eastward at all? The ‘Iberian’ immigrants certainly did not retreat ‘against the current’ of the Round Barrow invaders: they retreated, if at all, to the remoter parts of Britain. The argument that the Round Barrow skulls resemble those of the Sion type is disposed of by merely comparing the measurements and the illustrations of the two series. The Sion type, as Rolleston[1940] says, ‘corresponds to many of our long-barrow skulls,’ and is not brachycephalic but dolichocephalic or mesaticephalic:[1941] there is no proof that it was that of the Helvetii;[1942] and, as I have pointed out elsewhere,[1943] there is strong reason to believe that the Helvetii did not appear in Switzerland before the Iron Age.

So much for the arguments which have been adduced in favour of the popular theory. There are facts which absolutely disprove it. First, there is no evidence that the brachycephalic people who built round barrows ever reached Ireland, at least in appreciable numbers; for not a single skull of the characteristic Round Barrow type has ever been found there, and only four brachycephalic skulls which can be referred to prehistoric times.[1944] Yet it is needless to say that since a time long anterior to the Roman invasion of Britain Ireland has been one of the principal abodes of the Goidelic stock. Secondly, it is, as we have seen, in the highest degree probable, if not certain, that the Round Barrow race first invaded Britain in the Neolithic Age. Let us, however, for the sake of argument, accept Professor Boyd Dawkins’s assumption that their advent synchronized with the beginning of the British Bronze Age. Now, according to Professor Montelius, the Bronze Age in this country began about 2000 B.C.; according to Sir John Evans,[1945] six centuries later. It is impossible to fix with certainty the date of the earliest Celtic invasion of Britain; but such historical evidence as we possess points to the conclusion that it was not earlier than the seventh century before the Christian era.[1946] M. Salomon Reinach has argued that a Celtic-speaking people appeared in North-Western Gaul in the ninth century,—the earliest date which has ever been proposed by any scholar; but his view is based on the mere conjecture that κασσίτερος,, the Greek word for tin, which occurs in Homer, is of Celtic derivation.[1947] M. d’Arbois de Jubainville, indeed, who adopts this conjecture,[1948] supposes that the Celts actually landed in Britain as early as the ninth century before Christ; but even if we accept his chronology, we are confronted with the fact that the very earliest date that has been assigned on historical or linguistic grounds for the first Celtic invasion[1949] is four or five centuries later than the latest, ten or eleven centuries later than the earliest date which has been assigned by archaeologists for the commencement of the Bronze Age in Britain. Yet anthropologists and antiquaries will go on repeating the dogma that the builders of the round barrows, who, at the latest, began to arrive in Britain at the commencement of the Bronze Age, were Goidelic Celts. The moral is that anthropologists and antiquaries would not be worse equipped if they enlarged the sphere of their studies.

Again, the view that a Celtic-speaking people invaded Britain at the close of the Neolithic or the beginning of the Bronze Age implies that Celtic and Latin, the nearest of kin in the Aryan family of languages, had become differentiated long before the Neolithic Age came to its end. Would any philologist who knew the rudiments of archaeology sanction a theory so preposterous?[1950]

The foregoing arguments apply equally to the short men whose remains have been found in the greatest purity in North-Eastern Scotland. The race to which they belonged began to arrive in Gaul very early in the Neolithic Age:[1951] they themselves landed in Britain before its close. Whoever they may have been, they were neither Goidels nor Belgae nor Brythons of any tribe.

Finally, although I am aware that I am about to tread upon thorny ground, I affirm that there is not the slightest reason to doubt that the Celtic invaders of Britain, in so far as they were descended from the Celtic-speaking people who conquered Gaul, were not a brachycephalic but a dolichocephalic or mesaticephalic people. I have already argued in favour of this thesis in a dissertation on ‘the Ethnology of Gaul’,[1952] and I will now adduce fresh evidence in its favour. But first let me make my meaning perfectly clear. I do not mean that the Celtic invaders of Britain were all of the same type. On the contrary, I assume that the dominant race had intermixed and intermarried, before they embarked from the Continent, with descendants of the neolithic stocks. I do not mean that even the invaders who introduced the Celtic language into Gaul, even those who beat the Romans on the Allia, were homogeneous. Dr. Beddoe, as I have remarked elsewhere,[1953] warns us not to believe that there was ever a period when, for example, all the Caledonians were red-haired. I only mean that among the Celtic-speaking conquerors of Britain dolichocephaly, as well as tallness and fairness, was a prevailing characteristic.

Thurnam[1954] asserted that ‘we may ask in vain for a series of ancient dolichocephalic skulls which, on satisfactory archaeological grounds, can be assigned to the immediately pre-Roman, and therefore to the Celtic period, either in England or in France’. Let us consider England first. Now it happens that the skulls of the ‘Late Celtic’ period, or Early Iron Age, which have been found in this country are almost all either dolichocephalic or mesaticephalic.[1955] Canon Greenwell,[1956] it is true, explains this fact by the assumption that ‘the intruding round-headed people ... were gradually absorbed by the earlier and more numerous [Long Barrow] race’. ‘In this way,’ he says, ‘it appears to me that we may account for the skull type of the Early Iron Age without the necessity of requiring any immigration into Britain or its conquest after the time of the presumed occupation by the bronze-using round-headed people,’ &c. But that necessity is imperative. Had Canon Greenwell momentarily forgotten his Caesar? The immigration of the Belgae took place, at the earliest, in the third century B.C., many centuries after the ‘occupation by the bronze-using round-headed people’. It is true that some of the British skulls which belong to the Late Celtic period are of the same type as those of the Long Barrow race:[1957] but this only proves that the Long Barrow race survived; and others are of a type which, as Rolleston says, is ‘entirely wanting ... in the series from the long barrows’.[1958] Unfortunately, however, the Late Celtic skulls which have been found in Britain are comparatively few;[1959] and hardly any of them can be assigned with certainty to the Brythonic invaders.