Hydrographic sheet, no. 1578, 1883
Hydrographic sheet, no. 1578, 1883
The hydrographic sheet no. 1578 documents collecting of sea bottom specimens from the Approaches to New York Harbor, July 18 - September 6, 1883. Lieut. H. B. Mansfield, U.S.N., was commanding the party. The table of data includes date, section number, locality with latitude and longitude including minutes and seconds, fathoms, and appearance












