Dr Salim, of Bagdad University, spent two years amongst the remarkable tribal peoples who inhabit the great marshes of the lower Euphrates. He describes their social and economic organization and discusses on the one hand the process by which people with bedouin traditions and values have adapted themselves to different and difficult conditions, and on the other the effects upon them of submission to the central government and the modernisation of their modes of life that has resulted from it. His account offers a fascinating study of people living in an unusual environment, and will be of value to the anthropologist and ethnologist for its precise ethnography. At the same time, as one of the few detailed studies of the changes now being wrought on such a large scale by modern economic and political forces, it has real importance for the general student of contemporary Middle Eastern affairs.