It was in connection with the policy of the ship-money writs that the old doctrine of the Plantagenets came again into being. In the writs themselves the very words were copied that Edward III. had used in 1336 in his mandate to the admirals; but some years before they were issued one may trace the growth of the idea. In the period from 1631 to 1633 there was much searching of records with the view of establishing the king’s rights in his seas. Negotiations had been proceeding with Scotland, described below, with reference to a great fishery scheme, and the Scots had been very troublesome and persistent about their “reserved waters,” which the scheme threatened, the “land-kenning,” and the encroachments of the Dutch. They only agreed to give up their exclusive claim to the “reserved waters” for the benefit of the fishery association, provided that Charles would free the Scottish seas of the Hollander busses. In the long series of papers respecting the fishery project, mostly prepared by the indefatigable Secretary Coke, the change referred to may be perceived. In those of 1629 and 1630 there is no suggestion of the sovereignty of the seas, but in 1631 instances become numerous. Coke claims the sea fishings as belonging to the crown; he begins to speak of the king’s “undoubted right of sovereignty in all the seas of his dominions,” and plainly says it will be necessary to exclude foreign fishermen from the British seas once the fishing society is a success. In the next year he goes further. He begins a long and formal document--also on fisheries--in the following words: “The greatnesse and glorie of this Kingdom of Great Britaine consisteth not so much in the extent of his Majesty’s territories by land, as in the souerantie and command of the seas. This command is in peace over trade and fishing: and for warre in the power of his Majesty’s Navie to incounter the sea-forces of anie foren prince.” And he goes on to say that while Spain alone used to oppose it, it was now opposed by France and the Low Countries.[395] Still more to the point were the words of Charles himself. A few months after the fishery negotiations with Scotland were concluded, he wrote to the Clerk-Register in Edinburgh saying that, as the fishing business was now completed, he was desirous that it should be known abroad by his neighbours through some “public writing,” and asking him to search the records of the kingdom for authentic evidence to show his rights to the fishings, and to send such evidence to him.[396]