Tvvo letters vvrit by Lievt. Col. John Lilburne, prerogative prisoner in the Tower of London, to Col Henry Martin, a Member of the House of Commons, upon the 13. and 15 of September. 1647 : the contents of which are very necessary to be taken notice of by all just men in the present age. Vnto which is annexed some other letters of great concerment [sic]. The first is subscribed, to his much honoured friend Col. Henry Martin, a member of the House of Commons, this with hast, post hast present.