Try "De Re Metallica' by Agricola. It was first published in Latin in 1556 but
was translated into English by amining engineer named Herbert Clark Hoover who
went on to other things.
Malcolm Henry
Quoting "Pratt, Daniel R." <[log in to unmask]>:
> I am (still) in the process of researching the 1820-1840s
> Swaledale/Arkengarthdale lead miner emigration to the Dubuque, Iowa
> area. As part of a broad physical description of properties associated
> with the Dubuque mines, I am attempting to compare local prospecting
> and
> extraction techniques with those of late-18th/early-19th century
> Europe
> and Yorkshire. I currently have zero data on European lead prospecting
> methods.
>
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