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It is true that, in his interpretation of the results of these analyses, the author implicitly accepts the limitation which this unexplored level of collinearity in his variables imposes: his interpretation is almost entirely carried out in terms of the values on the left-hand side of his equations and he properly refrains from any attempt to interpret the individual coefficients on the right-hand side. Nevertheless I think that the book would have been considerably improved if space could have been found for even a brief discussion of the inter-relationships between the variables. The lack of such an exploration has at least three disadvantages. First, as the author recognises, it makes his discussion of the substantive findings in the central chapter of the book extremely heavy going, since the elements in the discussion are all so abstract. (As he rightly says, This has been an exceedingly difficult chapter!) Secondly, it leaves unanswered the intriguing question as to why, in linguistic terms, an analysis using these variables should work at all-an inevitable question if only because, in an inflected language like classical Greek, his 'last letter' variables usually have direct grammatical significance. Thirdly, it will leave those who would wish to carry further the work in this field, which, as the author says, is deficient still in its theoretical content, with very few further basic principles to guide their work. So one must hope that the author will find time and resources to explore in much more detail the workings of the methodology which he has so successfully introduced to this intriguing field of enquiry.