But none of the works on the rights of England in the adjoining seas, which had appeared when the new policy of Charles began to be fashioned, was sufficiently profound or authoritative to furnish reasonable justification for that policy in the eyes of the world. The king in 1632, as we have seen, desired to demonstrate his rights by means of “some public writing,” founded upon the historical records of the realm,--a demonstration which was to precede the revival of the English pretension to the dominion of the seas in what Secretary Coke called its ancient style and lustre. As a result of the search made amongst the records in the Tower and elsewhere for evidence and precedents to establish the claim, several treatises and collections were compiled. Most of these were of little account,[653] but one of them attained an authority and celebrity only second to the great work of Selden. Before Charles wrote to the Clerk-Register in Edinburgh for Scottish documents to substantiate his claims (p. 212), it seems that Sir John Boroughs, the Keeper of his Majesty’s Records in the Tower, had been commissioned by the king to prepare the “public writing” to which he referred. We have already seen that in 1631 Boroughs brought forward the important roll of Edward I.; he tells us in his preface that his work was composed at the request of “a great person”; it was written in Latin, the language which fitted it for foreign Courts; and it deals very largely with the Dutch and English fisheries, even recommending the construction of 250 busses for the fishery association. Boroughs’ treatise, entitled “The Soveraignty of the British Seas, proved by Records, History and the Municipall Lawes of this Kingdome,” was completed in 1633, but it was not published until 1651, when the question of maritime rights had been again raised between England and the United Provinces.[654] It is probable that the king discarded it for _Mare Clausum_, the incomparably superior treatise by Selden, of the existence of which he was probably made aware as early at least as 1634.