pages from "De Calculo Renum...Singularis", 1638
Licence: Public Domain Mark
Credit: pages from "De Calculo Renum...Singularis", 1638. Wellcome Collection. Source: Wellcome Collection.
Licence: Public Domain Mark
Credit: pages from "De Calculo Renum...Singularis", 1638. Wellcome Collection. Source: Wellcome Collection.