Hydrographic sheet, no. 1642, 1885
The hydrographic sheet no. 1642 documents collecting of sea bottom specimens from the west coast of Florida, north of Cape Romano, May 12 - 16, 1885. Lieut. E. D. F. Heald, U.S.N., was commanding the party. The table of data includes date, locality with latitude and longitude including minutes and seconds, fathoms, and appearance












