Preservatives against the plague, or directions and advertisements for this time of pestilentiall contagion VVith certaine instructions for the poorer sort of people when they shall bee visited: and also a caveat to those that weare about their necks impoisoned amulets as a preservative against that sicknesse. First publisheed for the behoofe of the city of London, in the two visitations 1603. and 1625. and reprinted for the benefit of the said citie, now visited, and all other parts of the land, that may or shall hereafter be. By Francis Herring Dr. in physick, deceased.