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Subject.—A recent survey has revealed the existence of a dangerous ridge extending about 15 miles south-westward from Little Basses Lighthouse, as shown on the accompanying reproduction of a portion of Chart No. 813.

Position.—Little Basses Lighthouse, lat. 6° 24¾' N., long. 81° 43¾' E.



Remarks.—From this reproduction it will also be seen that a 3-fathom rock, now known as Lewin Rock, exists off Mahagagabawa, and that a less depth exists on Dædalus Shoal than has hitherto been shown on the charts.

Charts affected.—No. 813, Ceylon, South Coast; No. 828, Cape Comorin to Cocanada; No. 70, Bay of Bengal.

Publication.—Bay of Bengal Pilot, 1901, pages 99, 100, 101.

Authority.—His Majesty's Surveying Vessel Sealark, 4th October, 1909.

Subject.—The undermentioned rocks, not hitherto shown on the charts, exist in the entrance to West Penobscot Bay.

1. In Two Bush Channel:

Position.—At a distance of 19¼ cables, S. 48° E., from Two Bush Island Lighthouse; lat. 43° 57'N., long. 69° 2' W.

Depth.—17 feet.

2. In Muscle Ridge Channel and Approach: Position.—Ash Island Beacon, lat 44° 2½' N., shown on the charts. long. 69° 4' W.

Charts affected.—No. 612, Little Spoon Island to Pemaquid Point; No. 2492, Bay of Fundy to Block Island; No. 2670, Halifax to the Delaware.

Publication.—East Coast of the United States, 1899 pages 124, 140.

Authority.—United States Commerce Notices, Nos. 2696, 2697 of 1909

Subject.—A recent survey of Eggemoggin Reach has revealed the existence of less water on the undermentioned shoals than is at present shown on the charts.

1. Position.—Lat. 44° 16' 56" N., long. 68° 39' 39" W.

Depth.—2¼ fathoms in the place of 3¼ fathoms.

2. Position.—Lat 44° 16' 53" N., long. 68° 39' 30" W.

Depth.—2 fathoms in the place of 2½ fathoms.

3. Position.—Lat. 44° 16' 12" N., long. 68° 38' 36" W.

Depth.—3 fathoms in the place of 4¼ fathoms.

Remarks.—The positions given are those on Chart No. 620.

Charts affected.—No. 620, Penobscot Bays; No. 2492, Bay of Fundy to Block Island.