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Second map of an oceanic basin. Matthew Fontaine Maury produced this mapin 1854 and published it in the Wind and Current Charts for that year. Thismap had significantly more data than the 1853 map including soundings byLt. Otway Berryman, USN, on the USS DOLPHIN over the Mid-AtlanticRidge (MAR) north of the Azores. These were the first soundings on the MAR.