Likely enough, it followed closely the words of the baronial Schedule; but it may have contained some slight modifications in favour of the Crown. One such, at least, was inserted, apparently as an afterthought (on the intervention of the King perhaps, or one of his friends); articles 45 and 46, as originally conceived, have been subsequently connected by a rude bracket, and a qualifying proviso added which practically bestowed on the Archbishop the powers of an arbitrator to determine whether both articles should be altered in favour of the Crown or no.[37] The entire document is in a running hand, and appears to have been rapidly though carefully written. Its engrossment upon parchment with a quill pen must have occupied several hours; but a diligent copyist would not find it beyond his powers to complete the task in one day. ----- Footnote 37: Cf. Blackstone, _Great Charter_, xvii.: "subjoined in a more hasty hand, ... as if added at the instance of the King’s commissioners upon more mature deliberation." ----- Tuesday, Wednesday and Thursday were consumed in further negotiations as to matters of detail; in reducing the heads of agreement already accepted to the more binding form of a feudal charter; and in engrossing several copies for greater security. Everything was, however, ready for a final settlement on Friday the 19th. At the conference held on that day the conclusion of the final concord probably included several steps; among others, the nomination by the opposition, with the King’s tacit acquiescence, of twenty-five barons to act as Executors under chapter 61,[38] the solemn sealing and delivery of several original copies of the Great Charter in its final form, the taking of an oath by all parties to abide by its provisions, and the issue of the first batch of writs of instructions to the sheriffs. ----- Footnote 38: See _infra_ under that chapter. ----- Blackstone[39] thinks that the barons on that day renewed their oaths of fealty and homage. It is more probable that, until John had actually carried out the more pressing reforms promised in Magna Carta, they refused formally to swear allegiance, undertaking, however, in the hearing of the two archbishops and other prelates, that they would keep the peace and furnish security to that effect in any form that John might name, except only by delivery of their castles or of hostages.[40] ----- Footnote 39: _Great Charter_, p. xxiv. Footnote 40: See Protest of Archbishops _infra_, p. 52. ----- The statement that Friday, 19th June, was the day on which peace was finally concluded rests on unmistakable evidence. On 21st June, John wrote from Windsor to William of Cantilupe, one of his captains, instructing him not to enforce payment of any unpaid balances of “tenseries”[41] demanded since the preceding Friday, “on which day peace was made between the King and his barons.”[42] ----- Footnote 41: