Scientific Observations of Dr. I. I. Hayes’ Arctic Expedition of 1860-61.

Schott, Charles A. Port Foulke Observatory, Sept 9 1860. Library of Congress. Miscellaneous Manuscript Collections. Nine notebooks labeled 2108.
  • 1860-61 US North Pole Expedition (aboard United States, commanded by Isaac Hayes).
  • Arctic Reading: United States
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Schott, who worked for the Coast and Geodetic Survey, appears to have done the analysis of Hayes’ data in 1865. At end of Part I, the “Computation of the Astronomical Observations” is a draft letter from Schott to Hayes (Feb. 13, 1865) about their publication.