82 Sketch Of The Hooghly River From Hooghly Point To Mud Point.
Scope & Content:
By James Caldwell, Lieut: of Engineers, January 7, 1789. Scale of [5] Geographical miles [= 4.93 inches]. 'Soundings at low water, Spring Tides, months of November and December (1788?).' Manuscript copy by Barlow. 'Copied from the Manuscript Chart in the India House, March 1859.' Further anno...
160 From Mud Point To Saugor Light, The Dredge And Bedford Channels.
Scope & Content:
Surveyed January 1865. Scale 2000 Yards to an Inch. F. Laycock, Offg. River Surveyor, R.S.V. Fame, off Diamond Harbour, Feb: 15, 1865. Manuscript copy by Barlow. 'Reduction, Copied, May 1865, by R.F.B. on half the Scale of the original Lithograph.' Formerly 'Bedford's Channel No. 8'.
As Surveyed in season 1861/62. Scale One thousand yards to the Inch. Joseph Obbard, River Surveyor, Salween S.V., off Calcutta, 10th March 1862. Publishd. by T. Black & Co., Lithrs. & Engrs., Cal:, 22d. March 1862.
Surveyed in February 1871. Scale one inch = 1000 yards. J. Pearson, Offg. River Surveyor, R.S.V. Fame, Bedford's Channel, 24th February 1871. Litho: W. B. Nyss, Calcutta, March 1871. Manuscript additions and annotations by Barlow.
53 The Bellary, Rangafulla, Mud Point And Jellingham Channels.
Scope & Content:
Surveyed July 1874. Scale 1,000 Yards to an Inch. Samuel Reed, Asst. River Surveyor in charge, Guide R.S.V., August 9th 1874. Photozincographed under the Superintendence of Captn. J. Waterhouse, Surveyor General's Office, Calcutta. Manuscript additions and annotations by Barlow.
Surveyed December 1874. By Sml. Reed, Asst R.S. Scale 2,000 Yards = 1 Inch. F. Laycock, River Surveyor, Kedgeree R.S.V., January 13th 1875. Manuscript additions and annotations by Barlow.