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150
POPULAR SCIENCE MONTHLY.
have been known. But a distinct advance is indicated by the skillfully fashioned stone implements. Such long barrows occur most frequently in the southwest of England, in the counties of Wilts and Gloucestershire, especially in the bleak uplands of the Coteswold
Shetland Islands
Scandinavian Mixed Type.
"Old Black Breed" Type.
Hills; but they are also found much farther north as well. The people of this period were, as we have said, like their predecessors, extremely long-headed. The cephalic index in the life was as low as 72, several units below any average in Europe to-day, save per-
