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suggested for cyanide destruction . The simultaneous extraction of metal and cyanide hasalso been proposed as an effective alternative .

The tailings generated from uranium industries are a combination of rejects from bothmining and chemical processes (alkali, acid leach) . The tailings contain radium (Ra), theelimination of which is expensive .

Chapter 13 deals with the condition of tailings in the post-operation phase includingthe process of decommissioning, reclamation and use of cover to avoid expensive carebeing endlessly required . Chapter 14 is an outcome of case studies modelling andmethodology for investigating weathering migration etc . The last chapter, as one wouldexpect, has been devoted to the cost aspects of the various disposal options including thevarious elements of tailings treatment, thickening, transport, impoundment, and loca-tion, etc .

The main text is an assembly of significant examples of solid waste handling, reportedby a variety of industrial workmen over several years . This is probably the first time suchcomprehensive details involving the bio-geochemical concepts of tailings have beenpublished in book form . Plenty of useful information is included in an extensive chapterdevoted to weathering, effluent treatment, decommissioning, modelling and costmanagement, and the book is sure to be of very good value to the effluent managementdepartments of metallurgical and mineral processing industries, as well as to the researchagencies in the field of waste management .

I personally believe that to a large extent the objectives behind writing such a bookhave been achieved . Not forgetting its positive features, there are however a fewirritating aspects of the content and presentation which need mentioning .

I find that the job of proof reading has not been up to the mark with many minortypographical errors . Imperial, metric and U .S.A. units have been used indiscriminatelythroughout the text . Since the book is meant for readers drawn from various disciplinesthe scientific terminology, symbols and abbreviations used should have been defined andplaced conveniently in an appendix to the text. There are 356 figures but no standardmaintained for their presentation . If they had been redrawn the figures would have giventhe reader a far better impression. There are around 1500 references cited in the bookinclusive of a hundred from the author himself. However, I gained an impression thatthe author's own philosophy of management is drowned in a maze of information .

Although Chapter twelve deals with the details of specific tailings, there are areaswhere the reader's expectations are not met . The subtitle of the book raises anexpectation of specific management strategies aimed at solving the problems of miningindustries . This is precisely where one expects better exposition from the author. At anyrate the book would make a significant addition to any standard library .

BOOK REVIEW:PROPOSED SITE SELECTION CRITERIA FOR THE DEVELOPMENT OF AHAZARDOUS WASTE MANAGEMENT SYSTEM . A Discussion Document distri-buted by the Manitoba Hazardous Waste Management Corporation, 226-530 Century St .Winnipeg, Manitoba, Canada R3H 0Y4. By C. P. Latonis and E. Kucera (Eds.) 1988 .132 pp . No charge. Reviewed by Alan Parker, Abingdon, U.K .

This discussion document was prepared prior to the establishment of a relatively smallplant for the treatment of hazardous waste . The final total area to be occupied by thefacility, including buffer zones, is estimated to be 130 hectares but no mention is made of

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the likely passage of material through the plant . Handling and analytical facilities will beprovided as well as a water treatment plant and waste treatment facilities . Solid residueswill be stabilized, solidified and stored in a secure repository . In addition, considerationis also given to the provision of transfer status for handling hazardous wastes .

The document outlines the steps required for successful site selection . Technicalconsiderations such as access, availability of services and land are first consideredfollowed by physical and environmental criteria . Factors such as geology, topography,protection of surface and groundwater quality, flooding risk, climate and air quality areaddressed. Land use issues including the proximity to urban centres, to private facilitiesparticularly housing and also to public facilities such as schools, hospitals and churchesare important . Development of the facility will not be allowed if the boundary were to bewithin 200 m of housing or within 1000 m of a public facility . The concern likely to beexpressed by local citizens is recognized . Other factors such as agriculture, forestry,fisheries, mining and special ecological considerations may eliminate potential sites .

While conditions in Manitoba will obviously be different to those in more denselypopulated areas, many of the considerations outlined in this document should begenerally applicable . Therefore its use as a checklist is likely to be useful to planners andothers engaged in attempting to provide hazardous waste facilities . The Appendiceswhich outline the siting criteria and site selection processes which have been adoptedelsewhere in the United States and Canada are of particular interest . They show in theU.S.A. that there is a considerable variation in selection criteria from state to state .

I think that a study of this Canadian document is likely to benefit readers in othercountries who may be faced with the very difficult problem of choosing a site forhazardous waste treatment. However, I would have liked to see more emphasis beingplaced on the methods for overcoming likely public resistance to such a projectespecially the "not in my backyard" attitude which is frequently encountered .