Proteus ecclesiasticus or George Keith varied in fundamentalls; acknowledged by himself to be such, and prov'd an apostat, from his own definition, arguments, and reasons [electronic resource] : Contrary to his often repeated false pretentions, whereby he hath laboured to deceive the people; telling them he is not varied from any fundamental principle, nor any principle of the Christian faith ever since he first came among the Quakers. With remarks on Daniel Leed's abusive almanack for the year 1703. By way of postscript. [Two lines of Scripture texts].