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Zones of stars observed at the National observatory, Washington. [electronic resource] Approved by Capt. G. A. Magruder, chief of the Bureau of ordnance and hydrography; and published under authority of the Hon. Isaac Toucey, secretary of the navy. By Commander M. F. Maury, LL.D., superintendant. Vol. I--part I. Containing the zones observed with the meridian circle in 1846. |
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