on till in the last Century Paracelsus and some few other sooty Empiricks, rather than (as they are fain to call themselves) Philosophers, having their eyes darken'd, and their Brains troubl’d with the smoke of their own Furnaces, began to rail at the Peripatetick Doctrine, which they were too illiterate to understand, and to tell the credulous World, that they could see but three Ingredients in mixt Bodies; which to gain themselves the repute of Inventors, they endeavoured to disguise by calling them, instead of Earth, and Fire, and Vapour, Salt, Sulphur, and Mercury; to which they gave the canting title of Hypostatical Principles: but when they came to describe them, they shewed how little they understood what they meant by them, by disagreeing as much from one another, as from the truth they agreed in opposing: For they deliver their Hypotheses as darkly as their Processes; and ’tis almost as impossible for any sober Man to find their meaning, as ’tis for them to find their Elixir. And indeed nothing has spread their Philosophy, but their great Brags and undertakings; notwithstanding all which, (sayes Themisti-
