From a survey by U. S. S. Mohican in 1888 with additions by U. S. S. Sumner in 1942. Coordinates approximate and based on Greenwich meridian. Depths shown by soundings and tints; relief by form lines and spot heights. 1940 variation compass. Includes buoy legend, profile view. Shows shoals, reefs, vegetation, drainage, coastal buildings. Originally published Aug. 1888. No. 1136.