prout natura cuilibet speciei ea ingessit. But though Paracelsus ascribes to each of his belov'd Hypostatical Principles, much more than I fear will be found to belong to it; yet if we please to consider Colours, not as Philosophers, but as Dyers, the con∣currence of Salts to the striking and change of Colours, and their Efficacy, will, I sup∣pose, appear so considerable, that we shall not need to quarrel much with Paracelsus, for ascribing in this place (for I dare not affirm that he uses to be still of one Mind) the Colours of Bodies to their Salts, if by Salts he here understood, not only Elemen∣tary Salts, but such also as are commonly taken for Salts, as Al••m, Crystals of Tar∣tar, Vitriol, &c. because the Saline prin∣ciple does chiefly abound in them, though indeed they be, as we elsewhere declare, mix'd Bodies, and have most of them, be∣sides what is Saline, both Sulphureous, Aqueous, and Gross or Earthy parts.
But though (Pyrophilus) I have observ'd a Red and Green to be produc'd, the for∣mer, by Acid Salts, the later by Salts not Acid, in the exprest Juices of so many differing Vegetable Substances, that the Observation, if persued, may prove (as I said) of good Use: yet to show you how much e'vn these Effects depend upon the