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"5 jars shewing the results of Dr. [George] Hunter's analysis of City Pump Water, viz. 220 gallons of Water evaporated yielded 24 ox. common salt, 32 oz. Salt Petre, 17 oz. Magnesia, and 12 oz. Lime

Object Status:

Unlocated

Accession Date:

By 1805

Primary Source Reference:

Guide to the Philadelphia Museum (Philadelphia, 1805), p. 4

Notes:

George Hunter (1755-1823), a Scot, came to America in 1774, settling in Philadelphia and working as a druggist, as an apothecary and surgeon in the American Revolution, and later as a chemist. In 1796 and 1802, he made journeys to the west, and in 1803 he secured a contract to purify saltpeter for the War Department and a patent for improving the production of sea salt. Jefferson appointed him to join William Dunbar in an expedition to explore the Red and Arkansas Rivers; Jefferson thought "he has probably no equal in the US." for his knowledge of chemistry.' He moved to New Orleans In 1815. Jefferson Papers, Founders Online, National Archives / https://founders.archives.gov/documents/Jefferson/01-41-02-0100