March 1880. Scale 3000 Feet to the Inch. Sam. Reed, Offg. River Surveyor, River Survey Dept., March 31 1880. Manuscript copy [apparently of a printed chart]. Manuscript additions by Barlow.
January 1880. Scale 6000 Feet to the Inch. Sam. Reed, Offg. River Surveyor, River Survey Dept., March 13 1880, Calcutta. Manuscript copy of a chart 'Photozincographed at the Surveyor General's Office, Calcutta, March 1880'. Manuscript additions and annotations by Barlow.
110 Bengal, River Hooghly. Gaspar Channel & Saugor Roadstead.
Scope & Content:
Surveyed by S. Reed, Esqre. Commanding River Surveying Vessel Clyde, assisted by the officers of the River Survey Department, February 1882. Scale of [5] Sea Miles [= 5 inches]. Calcutta, published under the authority of the Port Commissioners, April 1882. 'No. 2.' Photozincographed at the Su...
As Surveyed in November 1858, and corrected and enlarged in January 1864, to include the New mouth of the Mahanuddee which formed in November 1863. Scale One thousand Yards to the Inch. Joseph Obbard, River Surveyor. T. Black & Co., Lithrs:, Calcutta.
As Surveyed in January 1863. Scale A thousand Yards to the inch. Joseph Obbard, River Surveyor, Salween S.V., off Kedgeree, 27th January 1863. T. Black & Co., Lithrs: & Engrs:, Cal:. Annotated by Barlow.
Surveyed December 1865. Scale 1000 Yards to an Inch. F. Laycock, Offg. River Surveyor, Fame R.S.V., off Diamond Harbour, January 3rd 1866. Litho: W. B. Nyss, 47 Dhurrumtollah Road. Manuscript additions and extension slip by Barlow.
29 The Rangafulla, Mud Point And New Jellingham Channels.
Scope & Content:
Surveyed August and September 1867. Scale 1000 Yards to an Inch. F. Laycock, River Surveyor, Fame R.S.V., Mud Point Channel, September 10th 1867. Bengal Litho: Press, No. 47 Dhurrumtollah Road, Calcutta. Formerly numbered 48. Annotated by Barlow.
33 The Rangafulla, Jellingham, And Mud Point Channels.
Scope & Content:
Surveyed December 1868. Scale 1000 yards to an inch. F. Laycock, River Surveyor, Fame R.S.V., December 22nd 1868. Lithographed. Formerly numbered 49. Manuscript additions and annotations by Barlow.
Surveyed February & March 1874. Scale 2000 Yards to an Inch. F. Laycock, River Surveyor, Megna R.S.V., March 12th 1874. Photozincographed under the Superintendence of Captn. J. Waterhouse, Surveyor General's Office, Calcutta. The Entrance Of The River Hooghly From The Eastern Channel Ligh...
Surveyed January & February 1877. Scale 2000 Yards = 1 Inch. F. Laycock, River Surveyor, Kedgeree R.S.V., February 23rd 1877. Photozincographed under the Superintendence of Captn. J. Waterhouse, Surveyor General's Office, Calcutta. Manuscript additions and annotations by Barlow.