There is a temptation to use the term archive to describe such work-sites. But we need to remember that archival acts and editorial acts are, for good reasons, traditionally seen as performing different operations on or with texts. Editions turn documentary facts, derived from the archive, into evidence: that is, evidence within the orbit of the editorial rationale adduced to deal with the documents. The hardback edition is therefore an inherently provisional embodiment of an argument, however impressive its printed form may be.