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<dl><dd>Finding aid for the John Torrey papers available from the LuEsther T. Mertz Library, New York Botanical Garden and online</dd>
<dd>Correspondence from Loyal Case to John Torrey, dated 1851, discussing samples of slate, pyrite, and gold ore he has sent to Torrey from a site in Arkansas, and asking various questions related to the chemistry of gold extraction. He states he was inspired to write Torrey after seeing an account of the latter's work with "chloride of lime" in Scientific American.</dd></dl><br>Subjects: Prospecting</div>
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Case, Loyal, 1807-1865</div>
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