Calcutta Geographical Review. January 1942

GANGETIC PLAIN The Gangetic plains occupy the whole of the area between the Sub-Himalayan Region and the jumna and after its confluence with the Ganges the latter. [...] The whole of this region is the transition zone between the dry Punjab and the wet Bengal since the western part of the province has affinities with the Punjab and the eastern part with Bengal. [...] AGIUcULTORAL REOloNs OF THE uNITEts PROVINCES 43 THE 'I'RAN 8-J UMNA TRACT The conditions south of the J umna and after its confluence with the Ganges the latter are different from the conditions north of the above rivers. [...] the Ganges the Padilla the J imam the Brahniaputra the Teesta the Meghna are largely used for raising the fish supply in Bengal. [...] The migration begins about the time of the commence-FISilEitIES OF riENGAL 51 ment of the rains and spawning takes place principally in the month of September.