1857
Barnes, Edward A., fl. 1857
Manuscript document signed
Title: Rule for ascertaining the longitude by Chro. at Sunset
Details the procedure for obtaining longitude at sea based on the time of the sunset and latitude.
GLC00722.07
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.
Showing results 26 - 50
Showing results 26 - 50