Talcott, Andrew, 1797-1883.
Andrew Talcott papers, 1832-1914.
Letters, maps, pamphlets, relating to the Ohio Boundary Survey, 1832-1836, and the "Talcott Method" of using the zenith telescope in determining latitude.
Army Officer, engineer, astronomer, and surveyor. While working on the Michigan-Ohio boundary line, he devised a method of determining terrestrial latitudes through the observation of stars near the senith, dapting the senith telescope to the purpose. "Talcott's method" was first described in the "Journal of the Franklin Institute (October 1838), and its adoption by the Coast Survey led to great improvements in the zenith telescope and to the utilization of the method in U. S. goverment surveys.
Latitude -- Measurement.
Surveying -- Technological innovations -- United States -- 19 century.
Zenith telescopes -- Technological innovations.
Maps. aat
Pamphlets. aat
Astronomers. lcsh
Engineers. lcsh
Ohio Boundary Survey.
AIP-ICOS
United States Military Academy. Special Collections. West Point, NY 10996-2099, USA