 | JOHN R. EASTMAN, B. F. Sands, the hin.secretary of the navy, Coffin, Page, Steedman, Commander J.M. Gilliss, M.F. Maury, M.Narnall, James Major, T.J. Robinson, SIMON NEWCOMB, United States Naval Observatory, William Harkness, james major, u.s.n., lafayette maynard, u.s.n, william b. muse, u.s.n, john rodgers, u.s.n - 1872
...Y's by levers and other counterpoises within the pivots and axis. Its pier is a wide monolith, whose central portion has been cut out for the accommodation of a reversing apparatus of special construction. The instrument has not been in use for several years, and such had... | |
 | JOHN R. EASTMAN, B. F. Sands, the hin.secretary of the navy, Coffin, Page, Steedman, Commander J.M. Gilliss, M.F. Maury, M.Narnall, James Major, T.J. Robinson, SIMON NEWCOMB, United States Naval Observatory, William Harkness, james major, u.s.n., lafayette maynard, u.s.n, william b. muse, u.s.n, john rodgers, u.s.n - 1872
...accuracy have been obtained. The pier upon which the instrument is mounted is a wide monolith, whose central portion has been cut out for the accommodation...Charles Frodsham, and is mounted against a granite pier placed to the east of the Prime Vertical Transit Instrument. Instead of glass, it has a steel cylinder... | |
 | William Vincent McKean - 1864 - 668 pages
...Ys by lovers and other counterpoises within the pivote and axis. Its pier is a wide monolith, whose central portion has been cut out for the accommodation of a reversing apparatus of special construction. "The instrument has not been in use for several years, and such... | |
 | 1864 - 670 pages
...machinist, of the Observatory, and observations in the prime verti¡ cal are now made. j " The clock was made by Charles Frodsham, and is mounted against a granite pier placed east of the prime vertical transit instrument. Instead of glass, it has a steel cylinder for... | |
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The pier upon which the instrument is mounted is a wide monolith, whose central portion has been cut out for the accommodation of a reversing carriage of special construction. The clock for this room was made by Charles Frodsham, and is mounted against... 