Estimate of Output

Scope and Content

Of lead concentrates prior to 1930 in Halkyn District United Mines area, by J.L. Francis. These cover the Halkyn-Rhydymwyn-Mold area of Flintshire, and Maeshafn-Llanarmon area of Denbighshire; they are based on official statistics, from 1845, on reports by John Taylor on the Mold and Halkyn Mines, from 1823, and on estimates of production based on the areas shown as stoped in old plans in the Duke of Westminster's Estate Office, etc.

Note

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