Preservatives against the plague, or, Directions & advertisements for this time of pestilential contagion· With certain instructions for the poorer sort of people when they shall be visited: and also a caveat to those that were about their necks impoisoned amulets as a preservative against that sickness. Published in the behoofe of the city of London; now visited, and all other parts of the land, that may or shall hereafter be visited. By Francis Herring Dr. in physick.