A serious appeal to all the more sober, impartial & judicious people in New-England to whose hands this may come : whether Cotton Mather in his late address, &c. hath not extreamly failed in proving the people call'd Quakers guilty of manifold heresies, blasphemies and strong delusions ... : together with a vindication of our Christian faith in those things sincerely believed by us, especially respecting the fundamental doctrines and principles of Christian religion / by George Keith.