Maury's wind & current chart, 3d. edition 1849, no. 5, series A

Track Chart Series A

A series of hydrographic charts for the Atlantic, Pacific, and Indian Oceans produced by Matthew Fontaine Maury under the auspices of the U.S. Hydrographic Office. The charts incorporated data which Maury initially compiled from ships' logs stored at the Navy's Depot of Charts and Instruments (which later became the Naval Observatory). Maury then obtained massive amounts of navigational, hydrographic, and meteorological data from the recent voyages of Navy and commercial ships whose officers submitted the information on specially designed abstract logs created by Maury in return for free copies of the Wind and current charts. Six types of charts were produced: Series A, Track charts; Series B, Trade wind charts; Series C, Pilot charts; Series D, Thermal charts; Series E, Storm and rain charts; and Series F, Whale charts. For a comprehensive discussion of the series and listing of all charts known to have been produced, see "The wind and current chart series produced by Matthew Fontaine

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