Hydrographic sheet, no. 1658, 1885
Hydrographic sheet, no. 1658, 1885
The hydrographic sheet no. 1658 documents collecting of sea bottom specimens from The East River, channels on either side of Blackwell's Island [Roosevelt Island] in New York, September 9 - November 15, 1885. Lieut. J. M. Hawley, U.S.N., was commanding the party. The table of data includes date, locality with latitude longitude including minutes, fathoms, and appearance












