File talk:Marine sandglass wm.jpg

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Scanned from book:The new American practical navigator : being an epitome of navigation ; containing all the tables necessary to be used with the Nautical almanac in determining the latitude, and the longitude by lunar observations, and keeping a complete reckoning at sea ; the whole exemplified in a journal, kept from Boston to Madeira ; with an appendix, containing methods of calculating eclipses of the sun and moon, and occultations of the fixed stars

Date: 1859 (scanned 2010-01-01)
Source :Nathaniel Bowditch; Jonathan Ingersoll Bowditch Editorial: New York : E. & G.W. Blunt, 1859.
--Mcapdevila (talk) 14:22, 22 April 2016 (UTC)[reply]
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