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At the Institute’s core is the Gilder Lehrman Collection, one of the great archives in American history. More than 85,000 items cover five hundred years of American history, from Columbus’s 1493 letter describing the New World through the end of the twentieth century.

Hornblower, John, fl. 1787 [Directions for mining]

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Gilder Lehrman Collection #: GLC02437.08191 Author/Creator: Hornblower, John, fl. 1787 Place Written: s.l. Type: Autograph document signed Date: 24 September 1787 Pagination: 4 p. ; 32.4 x 20 cm. Order a Copy

Discusses the necessary measures for proper mining.

Hornblower, John, fl. 1787

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