Rice is hulled and grain coarsely ground in stone querns or by water pestles.
In other cases, however, these were on a larger scale, provided with numerous querns or hand-mills of the well-known form, evidently intended for public supply.
Such implements as have survived are of the rudest description, and include querns or stone handmills for grinding corn, stone worts and bone combs employed in primitive forms of woollen manufacture, and specimens of simple pottery ware.
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