source, wherein the task of selection and rearrangement had already been in large measure performed. In 1607 the printer, George Eld, published a handsome folio, of which the British Museum possesses a fine copy (c. 66, b. 14), originally the property of Prince Henry, eldest son of James I. Its title is: "A General Inventorie of the Historie of France, from the beginning of that Monarchie, unto the Treatie of Vervins, in the Yeare 1598. Written by John de Serres. And continued unto these Times, out of the best Authors which have written of that Subject. Translated out of French into English by Edward Grimeston, Gentleman." This work, the popularity of which is attested by the publication of a second, enlarged, edition in 1611, was the direct source of the "Byron" plays, and of The Revenge. In a dedication addressed to the Earls of Suffolk and Salisbury, Grimeston states that having retired to "private and domestique cares" after "some years expence in France, for the publike service of the State," he has translated "this generall Historie of France written by John de Serres." In a preface "to the Reader" he makes the further important statement: "The History of John de Serres ends with the Treatie at Vervins betwixt France and Spaine in the yeare 1598. I have been importuned to make the History perfect, and to continue it unto these times, whereunto I have added (for your better satisfaction) what I could extract out of Peter Mathew and other late writers touching this subject. Some perchance will challenge me of indiscretion, that I have not translated Peter Mathew onely, being reputed so eloquent and learned a Writer. To them I answere first, that I found many things written by him that were not fit to be inserted, and some things belonging unto the Historie, related by others, whereof he makes no mention. Secondly his style is so full and his discourse so copious, as the worke would have held no proportion, for that this last addition of seven years must have exceeded halfe Serres Historie. Which considerations have made me to draw forth what I thought most materiall for the subject, and to leave the rest as unnecessarie."From this we learn that Grimeston followed Jean de Serres till 1598, and that from then till 1604 (his time-limit in his first edition) his principal source was P. Matthieu's _Histoire de France_, rigorously condensed, and, at the same time, supplemented from other authorities. A collation of Grimeston's text with that of the "Byron" plays and _The Revenge_ proves that every passage in which the dramatist draws upon historical materials is to be found within the four corners of the folio of 1607. The most striking illustrations of this