¹ MS. Fr. 1182, (Bib. Nat. Paris), probably the original copy presented to the Duc de Guienne, which I have used both directly and by photograph for this study, has certain peculiarities that appear at intervals with other French philosophical writing down to and including Descartes. Besides the quotations from Latin classics, sometimes with exact references, sometimes general ones, there are marginal notes, in what seems to be the same hand as the text. More than one of these, like the summary from the De Natura, Deorum given in italics on page 185, may be Christine's effort to elucidate her thought in the same language as her sources, and following Gerson's counsel to leave a high philosophical concept in the learned tongue. The Letters and Discourses of Cicero were known, too, in Italy sometime before we find them in the rest of Europe. The summary may be, of course, from some Italian edition she used, rather than of her own composition. On a larger scale, the fourth book of the De Imitatione Christi, glossing the French version of the three first books in the Consolation Internelle, presents analogies. The subtleties of learned vernacular composition at this period cannot be resolved with dogmatic certainty or established except by comparative and sensitive study.