As we have said the round-headed race introduced the circular barrow, and cremation was their usual, though not exclusive, practice. These people were much stronger and bigger men than their predecessors, their powerful jaws and projecting chins showing much more power of will than the softer narrow-faced dolichocephalic race. However, in the round barrows we also find the bodies of the latter, and we gather that they were not exterminated or driven out by their conquerors, but mingled with them, intermarried, until at length the type of the long-skulled race prevailed, and the Celt of later times possessed the features of the race he had formerly subdued. At least such seems to be the teaching of the barrows. The Celt became acquainted with the use of bronze, and his tomb was enriched with a store of the relics of the life and art of the workmanship of the time. As cremation was the usual practice, it was no longer necessary to have a chamber which the dead might inhabit; the size of the sleeping-place of the dead was reduced, and a cist was constructed for the receptacle of the urn in which the remains were placed. The mound also was reduced in size and looked much less imposing than the huge barrows of the Stone Age; but its contents were much more important. The ashes we find frequently contained in a rude urn of black pottery with some ornamentation. Then we discover pins made of bones, which were evidently used to fasten the dress. The people therefore were evidently not naked, woad-dyed savages; moreover we find bits of woollen fabric and charred cloth, and in Denmark people belonging to this same early race were buried in a cap, shirt, leggings, and boots, a fairly complete wardrobe. They also loved to adorn themselves, and had buttons of jet, and stone and bone ornaments. Besides flint implements we find adzes and hatchets and chisels, axe-hammers constructed with a hole in them for the insertion of a handle, grain rubbers, wheat stones, and hammer stones. The mounds also disclose a great variety of flint implements, hatchets, scrapers, both round and long, knife-daggers, knives, saws, drills, fabricators or flaking tools, sling stones, hammer stones, polishers, arrow-points, either leaf-shaped, triangular, or barbed, and heads of darts and javelins. A very curious object is sometimes found, a stone wrist guard, for the purpose of protecting the wrist from the bow string.