Water-mills
The book is known for reference to a water-mill in Chapter 1, section 42, where Palladius suggests that waste water from an aqueduct should be used to drive a mill. Such mills had been described by Vitruvius in 25 BC, and there is a growing number of examples of such Roman water-mills. The most spectacular is the set of 16 mills at Barbegal in southern France, using water fed by a stone aqueduct along the line of the same aqueduct which supplied nearby Arles.
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