Civil engineering: a canal passing through hilly terrain (above), and diagrams of canal locks and pressure-regulating mechanisms (below). Engraving.
- Reference:
- 44541i
Licence: Public Domain Mark
Credit: Civil engineering: a canal passing through hilly terrain (above), and diagrams of canal locks and pressure-regulating mechanisms (below). Engraving. Wellcome Collection. Source: Wellcome Collection.
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