We are hardly yet in a position to speculate why this should be so; but, so far as I can at present see, I would infer from this that the French examples are, as a rule, of earlier date than the British and Scandinavian. The circle I take to be one of the latest forms of rude stone architecture--the skeleton of a tumulus, after the flesh of the sepulchral mound, which gave meaning to the group, had been thrown on one side as no longer indispensable. But of this we shall be better able to judge as we proceed. Another characteristic, although not a distinction, is the fondness of the French for the "Allée couverte" or "Grotte des fées." No examples of this form have yet been brought to light in England, but one is engraved (woodcut No. 80) as the Hag Birra's grave near Monasterboice, a second from the same neighbourhood, at Greenmount (woodcut No. 81), and they exist in Scandinavia, but their home is Drenthe and the neighbouring corner of Germany. As already mentioned, upwards of fifty examples exist in that province. They are much ruder, it must be confessed, than those of France; but this may arise from the nature of the only material available; they have also the peculiarity of having the entrance always at the side instead of at the end. So far as their distribution in France has yet been ascertained, the Grottes des fées exist only on the Loire, and to the north of it, in fact in the most northern division of the French dolmen region; while, on the other hand, as they are principally found in Drenthe, or at the southern extremity of the German dolmen field, we may assume that there is some connection between the two, or that there would have been if it had not been severed by the Belgians before those in either region were erected.