1
Published 1799
Tregoning, Typ. Truro
Subjects: '; ...Copper mines and mining / England / Cornwall (County) / Early works to 1800...

2
by Pitt, Thomas
Published 1751
printed for R. Baldwin, at the Rose, in Pater-Noster-Row
...Tin mines and mining / England / Cornwall / History...

3
Published 1800
printed by A. Strahan, Printers-Street, Gough-Square
Subjects: '; ...Copper mines and mining / England / Cornwall (County)...

4
by Rosewarne, Henry
Published 1779
printed by Philip Elliot