Theater of Machines, Volume 3

To this shall be added the third [kind], which is indeed also driven by water, but only on still waters, such as ponds, city or irrigation ditches, pools, and the like, and may even be built over a well. These mills cannot lack water, since it always remains in its ditch or pool and is driven into itself only by the machinam machine.

Fourthly, there are windmills. But since these are quite common in all lands, I have described and presented only a single example, which is not common, namely a stone one, because it has hitherto been considered unbelievable by everyone, especially in these parts of the country, that stone windmills could be built and used with profit. And this windmill serves not only