We must, however, agree that the Greek part of Rhys’ hypothesis will not stand, at least without considerable emendation, nor have we found from our archæological investigations any reasons for believing that the Alpine inhabitants of the Swiss lake-dwellings over-ran as conquerors the surrounding regions. The evidence, in fact, points in an opposite direction. The deletion of these two points is not fatal to the hypothesis, and we may still consider that there is, on philological evidence, a _prima-facie_ reason for believing that from somewhere in Central Europe, from the area which we have termed the Celtic cradle, two waves of invaders, of Wiro speech if not of Wiro race, set out in various directions, that the Q was the earlier and the P the later, and that both entered Italy and the Celtic lands. We may further admit the possibility or even the probability, that an alien element, not necessarily non-Wiro, had entered the Celtic cradle before the departure of the second wave, and that it was to this alien element that the labialisation was due. Lastly, we may admit that, though evidence of the Q wave into Greece is non-proven, there is no doubt of the arrival of the P people, but these P people spoke a tongue showing greater affinities with Iranian speech, especially in their names for weapons and other warlike paraphernalia,[468] than is to be recognised in the other P tongues. Now we have seen from the study of archæological evidence that the men of the leaf-shaped sword passed at one time into Italy, where they settled near Lake Fucino, and a little later some entered the Celtic lands of the west, while earlier a few adventurers reached Greek lands. Later some refugees from the mountain zone reached many parts of France and the British Isles. All these seem to have come from the same Celtic cradle and to have been of the same racial type or, to speak more accurately, types. Later still, we have seen that the Koban folk, who had learned the use of iron in the neighbourhood of the Caucasus, returned to the Danube valley, after which some of them entered Greece as Dorians, while others entered Italy with the Villa-nova culture and a third group pursued their predecessors over all parts of France except the Seine valley. It seems possible, if not probable, that these two waves of invasions may have been those which brought Q and P speech respectively into these different parts of Europe. If this equation be accepted, the main features of Sir John Rhys’ hypothesis have been proved. But it will not be wise to jump too hastily to a conclusion, for the fact that there were two waves of invaders and two of Wiro dialects may be only a coincidence. We must attempt to apply a confirmatory test.