In his Inaugural Lecture as Downing Professor at Cambridge in 1888 F. W. Maitland, after introducing to his hearers certain matters—the variety, classification and enormous mass of Legal Records surviving in England—which were then little appreciated, went on to develop two lines of thought: first, that the wealth of evidence contained in these Records needed, if it was to be utilised, the labour of Scholars trained in the Law; and second, that it was evidence not only for Legal Historians but also, and much more, for other Historians and Students of every kind. The first of these propositions needs a little qualification: indeed Maitland himself would, I am sure, now qualify it, for some of the most enthusiastic and most successful Scholars who have followed in his footsteps have been not Lawyers but Historians. Still it remains true that the first and worst difficulties to be solved are legal ones, obscurities not soluble by any of the ordinary aids to the understanding of ancient Documents in general but arising from points of Law: some of them points which the Historian might puzzle over for hours whereas the Lawyer would solve them in a moment; all of them peculiar to this one great category of Records.