Elements of the art of assaying metals / Written originally in Latin. With notes and observations not in the original, by Cromwell Mortimer. To which is prefixed a list of the chief English authors who have written upon minerals and metals.

Licence: Public Domain Mark

Credit: Elements of the art of assaying metals / Written originally in Latin. With notes and observations not in the original, by Cromwell Mortimer. To which is prefixed a list of the chief English authors who have written upon minerals and metals. Source: Wellcome Collection.