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See also:- WALKER, FRANCIS AMASA (1840-1897)
- WALKER, FREDERICK (184o--1875)
- WALKER, GEORGE (c. 1618-169o)
- WALKER, HENRY OLIVER (1843— )
- WALKER, HORATIO (1858– )
- WALKER, JOHN (1732—1807)
- WALKER, OBADIAH (1616-1699)
- WALKER, ROBERT (d. c. 1658)
- WALKER, ROBERT JAMES (1801-1869)
- WALKER, SEARS COOK (1805—1853)
- WALKER, THOMAS (1784—1836)
- WALKER, WILLIAM (1824-1860)
WALKER, SEARS See also:COOK (1805—1853) , See also:American astronomer, was See also:born at See also:Wilmington, See also:Massachusetts, on the 28th of See also:March 1805. Graduating at Harvard in 1825, he was a teacher till 1835, was an See also:actuary in 1835—r845, and then became assistant at the See also:Washington See also:observatory. In 1847 he took See also:charge of the See also:longitude See also:department of the See also:United States See also:Coast Survey, where he was among the first to make use of the electric See also:telegraph for the purpose of determining the difference of longitude between two stations, and he introduced the method of registering transit observations electrically by means of a See also:chronograph. He also investigated the See also:orbit of the newly discovered See also:planet See also:Neptune. He died near See also:Cincinnati on the 3oth of See also:January 1853. His See also:brother See also:Timothy (1802—1856) was a See also:leader of the See also:Ohio See also:bar.
See See also:Memoirs of the See also:Roy. Astr. See also:Soc. vol. See also:xxiii.
End of Article: WALKER, SEARS COOK (1805—1853)
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