throughout the book, and I have added occasional
notes referring to works which have appeared since
its first publication. These are distinguished by
brackets. I have not, however, given a false
appearance of novelty by altering references to
suit recent editions, except in a few instances, such
as the second edition of Prantl s Geschiclite der
Logik im Abendlande, and Mr. Webb s edition of
the Policraticus. Nor have I changed the plan of
naming the place of publication of books quoted,
except when English, French, and German works
were published at London, Paris, and Leipzig; and
of specifying their size, when it was anything but
octavo. References to Bouquet are to the Recueil
des Historiens des Gaules et de la France ; those
to Pertz indicate the folio series of Scriptores in
the Monumenta Germaniae kistorica, and those to
Jaffe to the Bibliolheca Rerum German icarum. In
citations of manuscripts b denotes the verso of the
leaf; but when a manuscript is written in double
colums A, B. and c, D denote respectively the two
columns of recto and verso.
Oxford,
24 October, 1920.
