Statistics for occurrence #1 of “Dr. Piggott” in chapter 1.1 of Southern Historical Society Papers, Volume 37.:

..., and quite largely from the collection throughout the country of window weights, lead pipe, cistern linings, etc. Small lead smelting works were set up at Petersburg, Va., and under the direction of Dr. Piggott , formerly of Baltimore, not only was the ore from Wythe county and a few other points reduced, but even some progress was made in desilverization by the Pattinson process, several tons of enriched le...
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