The hearts-index, or Self-knowledge : together with the vast difference between nature and grace: as also the happy change of a criminal offender. Shewing, what a wonderfull change, and strange alteration the Word and Spirit do work upon the heart, when a sinner is converted: and yet what weak means shall serve the turn, where God intends successe. ... In which (as in a looking-glass) the civilest of men may see what need they have of a redeemer; ... betwitched. Drawn up and published for the good of all, by R. Younge of Roxwell in Essex, Florilegus. Add this as a third part to the trial of true wisdom, and those three fundamentall principles of Christian religion, intituled, A short and sure way to grace and salvation.