It is noticeable in Cornwall and on Dartmoor that the clusters of hut circles are generally associated on the one hand with tin stream works, and on the other with avenues and circles of upright stones, and that the heights of the hills near them are topped with cairns that contain kistvaens, or graves of rude stones, set on end and capped with large granite coverers. It may be taken as almost certain that where there is a large cluster of these dwellings, there will be found some megalithic monument hard by, or if not, that the enclosures, or the moor, will bear some name, such as Ninestones, or The Twelve Men (Maen = a stone), that testifies to there having been a circle there, which has been destroyed. With tin works the circles of hut foundations are invariably associated. In Holyhead, where is the cluster of bee-hive huts examined by Mr. Stanley, there also are to be found the Meinihirion, long stones, two stones standing ten feet apart, rising eleven feet above the soil, and originally surrounded by a circle of upright stones, now removed to serve as gate posts, or to form fences. There is sufficient evidence to show that the first builders of the bee-hive huts were the men of that race which erected the rude stone monuments in our island, and who also worked the tin. But what race was that? It was not Keltic. It was in our island before the Britons arrived. We can trace its course of migration from the steppes of Asia by the monuments it erected. This mysterious people came to the Baltic and followed its shores, some crossed into what was afterwards Scandinavia, but the main tide rolled along the sea-shore. They have left their huge stone monuments in Pomerania, in Hanover. They crossed the Rhine, and from Calais saw the white cliffs of Albion and one large branch of the stream invaded and colonised the British Isles. Another, still hugging the sea, passed along the coast of Gaul to Brittany, thence descended the shores of the Bay of Biscay, sent settlers up the Seine, the Loire, and the Dordogne, swept on into the Iberian peninsula, crossed into Africa, and after setting up circles and dolmens in Algeria, disappeared. They never penetrated to the centre of Germany; the Oder, and the Elbe, and the Rhine offered them no attractions. They were a people of rocks and stones, and they were not attracted by the vast plains of Lower Germany; they never saw, never set up a stone in the highlands, in the Black Forest, or the Alps. But it was otherwise with the great rivers of Gaul; with the sole exception of the Rhone they followed them up. Their monuments are numerous on the Loire; they are as dense in the upper waters of the Lot and Tarn as they are among the islets and on the headlands of Brittany. It is doubtful if they ever set foot in Italy. Such was the course taken by the great people which migrated to Europe. But another branch had separated at the Caspian, and had turned South. It passed over the Tigris and Euphrates,