The recently developed technique of 'co-citation analysis' is used to examine intel-lectual developments in the geosciencesfrom 1970 to 1975. The results for 1970show a cluster of plate tectonics articlesthat are often cited together, and a 'pic-ture' of these articles and their interrela-tionships is presented as a series ofinterconnected hills - one hill for eacharticle. Results for 1973 and 1975 indicatethe rise of new clusters of articles asso-ciated with new research interests, e.g.,'hot spots', and the dispersion of the orig-inal cluster of plate tectonics as this the-ory was applied to other areas, e.g., con-tinental geology. These results arepresented so that geoscientists canassess the ability of this new technique toidentify changing theoretical interests inscience.
A summary of the first formal review ofthe Technical Advisory Committee (TAC)to Atomic Energy of Canada Limited onthe Nuclear Fuel Waste ManagementProgram is presented. The Program isdescribed briefly and the compositionand role of TAC in relation to the Pro-gram is outlined. Salient points andmajor recommendations are presentedfrom the First Annual Report of TAC inwhich geoscience aspects of the Pro-gram were emphasized. It is the view ofthe Committee that overall, the wholeWaste Management Program is well con-ceived, that there are many impressiveaccomplishments of high quality, thatdetailed research objectives are becom-ing more clearly delineated, that there isgrowing clarification as to the most criti-cal areas in which research needs to beaccomplished and that the increasingparticipation by university and industryscientists and engineers is reassuring.