The editing of the correspondence of major figures in intellectual history is an essential scholarly activity. Yet in this country in recent years it has neither been the priority it should be, nor has it received the support that it deserves. Of course there have been exceptions to this, perhaps notably – for the early modern period – the epic one-man effort of Esmond de Beer in his later years in producing The Correspondence of John Locke (though this regrettably, and frustratingly, lacks a composite index). A further exception, the edition of The Correspondence of Henry Oldenburg by A. R. and M. B. Hall, was unfortunately flawed by the need to change publishers midway in the series, which has led to a marked disparity in the availability of the latter part of the set compared with its early volumes. In any case, like the Locke edition, this was conceived in the heady days of the 1960s and early 1970s, and few have ventured such enterprises since. Virtually the only exception is Noel Malcolm's edition of the manageable-sized Correspondence of Thomas Hobbes (two volumes, 1994). Moreover, it is revealing of the acute need to justify the publication of such material felt by editors and publishers alike that the promotional leaflet for this edition went so far as to claim that it was ‘one of the most important scholarly publications of the twentieth century’ – a claim that is the more ironic in view of the quite significant shortcomings in its method of presenting the material that it contains.