Hooghly River Size of each section: 58 cm x 108 cm, between borders. Each Section in single sheet.Coordinates drawn and numbered; area covered by latitudes from 220N to 22025’N and longitudes 87055’E to 880 25N and longitudes 87055 ‘E to 88025 ‘E shown; section7B and 7E blank; other contain only the outline of the river, with nothing written on the maps.