published at the Admiralty 17th June 1905 ; reproduced by the U.S. Hydrographic Office from British Admiralty Chart with the permission of the Controller, H.M. Stationery Office and Hydrographer of the Royal Navy
from surveys made by the officers of the River Survey Department, under the direction of E.W. Petley, Deputy Conservator of the Port ; drawn by N. Dass ; photozincographed at the Survey of India Offices