Letters from Lieutenant General Crumwels quarters. : His march from Barwicke to the City of Edenburgh, with the Marquesse of Arguile. And the transactions of the treaty in Scotland. With letters to his Excellency the Lord Generall Fairfax, concerning the great petition comming from the north, to the Parliament of England. And the state of the whole agreement in Scotland. Also the surrender of Barwick and Carlisle.