Track of the Surveying Brig DOLPHIN from September 1851 to July 1852

Track of the Surveying Brig DOLPHIN from September 1851 to July 1852. This track chart contains depth information, currents, winds, and other observations. It could be fair to say that U.S. Navy deep sea oceanography began with this cruise ordered by Matthew Fontaine Maury with the DOLPHIN under the command of Lieutenant Samuel Phillips Lee, USN.