The Potomak almanac, or The Washington ephemeris for the year of our Lord 1793 [microform] : ... The astronomical part of this work is adapted to the latitude and meridian of the city of Washington;--but will, without sensible error, serve the neighbouring states.

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Online Access: Search for the full-text online version of this title in the Early American imprints database
Format: Microfilm Book
Language:English
Published: George-Town, (Potomak) [D.C.] : Printed and sold by James Doyle, [1792]
Series:Early American imprints. no. 24706.
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