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The Grants register 1979-1981, edited by Roland Turner. London, MacMillan, 1980. (Available from Geonicla Publications, P.O. Box 31487, Braamfontein 2017 at R31,37; price to libraries R28,33.) Buyer's guide. Pretoria, South African Bureau of Standards, 1980. (Available free of charge from the Director General, SABS, Private Bag X191, Pretoria 0001.) SABS specification on gold alloys. World coal resources, by Bernardo F. Grossling. London, Financial Times, 1980. 160 pp. $D.S.155. Resources policy, a quarterly journal publish d in March, June, September, and December. Annua subscription: £40. Diamond jubilee 1980 The Associated Scientific and Technical Societies was established in 1920 primarily to 'promote the interests of Scientific, Professional and Technical Societies, the advancement of knowledge in Scientific and Technical subjects, and to uphold the professional status of such Societies,' and to 'represent corporately the views of Scientific, Professional and Technical Societies and the members thereof'. In this manner the strength of unity