The illustration below shows a human-powered treadmill driving millstones and a wire machine.
![](https://new.millsarchive.org/plus2/external/legacy_embedded_imgs/files/images/glossary-articles/Index_WM-MM_RO_WS_page_1.gif)
If you have suggestions for other types of human- or animal-powered mill machinery that you would like to see illustrated please feel free to provide feedback through our contact form.