Transport, Land Use and the Environment O.P A detailed study of the van Oystaeyen A detailed study of the partial as well as integrated dynamic interaction between these feedback mechanisms that consti tute the interdependence of markets and sectors of the modern macro economy This series of handbooks deals exclusively with microorganisms which are at the forefront of the new technologies and brings together in each of its volumes the background information necessary to appreciate the historical development of the organisms making up a particular genus covering fact finding The SIG held a seminar in December 1993 in Blackheath