. . . "18.52" . . . . . . . . . . "Returned to theU.S. Coast and Geodetic Survey" . . "1946-07-01" . "''Hydrographer''" . "49.9872" . "3.3528" . . "USS Hydrographer (AGS-2)" . . . . "1942-05-20" . "USS Hydrographer (AGS-2)" . "USS ''Hydrographer'' (AGS-2)" . "USC&GS ''Hydrographer''" . . . . . . . "9.4488" . .