Physick refin'd, or, A little stream of medicinal marrow flowing from the bones of nature [electronic resource] : wherein several signs, particular rules, and distinct symptoms whereby the most ordinary diseases may be distinctly known, and truly judged, are perspicuously delineated : and the most proper way, safe method, and simpathetical care, whereby nature may be helped, the sick eased, and languishing patients relieved (without the use of poysonous purging potions, and venomous medicaments) is succinctly demonstrated / by John Yarwood.