Title: Two Letters, The One, From the Right Honorable The Lord Major, Aldermen, & Commons Of The City of London in Common- Councell assembled, To his Excellency Sir Thomas Fairfax, and his Councell of Warre. The Other, From His Excellency Sir Thomas Fairfax, To The Right Honourable the Lord Major, Aldermen, and Commons of the City of London in Common-councell assembled