A declaration by Major General Laughorn, and the rest of the forces joyned with him in VVales : of the grounds of their engagement, and demands in relation to the King, Parliament and kingdom. Likewise the copy of an oath given to all that enter into the said engagement with them. Also the true copies of several letters and transactions betwixt the Parliaments commissioners, Colonel Horton, and Major General Laughorn, since his last coming into Wales. And two letters to his Excellency the Lord Fairfax from Col: Horton, more fully relating the particulars of the late fight near Cardiff, May 8. 1648. With a perfect list of the names of the prisoners, officers, private gentlemen and soldiers taken in the said fight and pursuit