The Ancient Stone Implements, Weapons and Ornaments, of Great Britain Second Edition, Revised
CHAPTER X.
HAMMER-STONES, ETC.
With Depressions on the Faces — With Cup-shaped Depressions — Ridged at the End — Made of Flint and Quartzite — Saddle-querns — Pestles and Mortars — From Shetland and Orkney — Various forms of Mortars — Hand-mills or Querns . . . 238