have as much power to act or work as Nature her self; but because neither Reason, nor Art has found out as yet such a powerful opposite to Gold, as can alter its nature; men therefore conclude that it cannot be done. Your _Author_ relates[8] to have seen the Gold-making stone, which he says, was of colour such, as Saffron is in its powder, but weighty and shining like unto powder'd Glass; one fourth part of one grain thereof, (a grain he reckons the six hundredth part of one ounce) being projected upon eight ounces of Quicksilver made hot in a Crucible, and straight way there were found eight ounces, and a little less then eleven grains of the purest Gold; therefore one onely grain of that powder had transchanged 19186 parts of Quicksilver, equal to it self, into the best Gold. Truly, _Madam_, I wish with all my heart, the poor Royalists had had some quantity of that powder; and I assure you, that if it were so, I my self would turn a Chymist to gain so much as to repair my Noble Husbands losses, that his noble family might flourish the better. But leaving Gold, since it is but a vain wish, I do verily believe, that some of the Chymical medicines do, in some desperate cases, many times produce more powerful and sudden effects then the medicines of Galenists, and therefore I do not absolutely condemn the art of Fire, as if I were an enemy to it; but I am of an opinion, that my Opinions in _Philosophy_, if well understood, will rather give a light to that art, then obscure its worth; for if Chymists did but study well the corporeal motions or actions of Natures substantial body; they would, by their observations, understand Nature better, then they do by the observation of the actions of their Art; and out of this consideration and respect, I should almost have an ambition, to become an Artist in Chymistry, were I not too lazie and tender for that imployment; but should I quit the one, and venture the other, I am so vain as to perswade my self, I might perform things worthy my labour upon the ground of my own Philosophy, which is substantial Life, Sense, and Reason; for I would not study Salt, Sulphur, and Mercury, but the Natural motions of every Creature, and observe the variety of Natures actions. But, perchance, you will smile at my vain conceit, and, it may be, I my self, should repent of my pains unsuccessfully bestowed, my time vainly spent, my health rashly endangered, and my Noble Lords Estate unprofitably wasted, in fruitless tryals and experiments; Wherefore you may be sure, that I will consider well before I act; for I would not lose Health, Wealth, and Fame, and do no more then others have done, which truly is not much, their effects being of less weight then their words. But in the mean time, my study shall be bent to your service, and how to express my self worthily, MADAM, _Your Ladiships_ _humble and faithful Servant._ [1] Ch. _called_, The Essay of a Meteor. [2] _Ch._ Heat doth not digest efficiently, but excitingly.