Principles and observations applied to the manufacture and inspection of pot and pearl ashes . By David Townsend, inspector of pot and pearl ashes for the Commonwealth of Massachusetts. Published according to act of Congress.

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Townsend, David.

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Principles and observations applied to the manufacture and inspection of pot and pearl ashes . By David Townsend, inspector of pot and pearl ashes for the Commonwealth of Massachusetts. Published according to act of Congress.