Roger Bacons Method

Oleo Antimonii Tractatus Tract De Oleo Stibii/  

You shall also know that you shall receive the perfect noble red oil, which serves for the translation of metals in vain, if you pour acetum correctum over the Antimonium and extract the redness. Yes not even by Reverberation, and even if its manifold Beautiful colors show themselves, this will not make any difference and is not the right way. You may indeed obtain and make an oil out of it, but it has no perfect force and virtue for transmutation or translation of the imperfect metals into perfection itself. This you must certainly know. 

AND NOW WE PROCEED TO THE MANUAL LABOUR, AND THUS THE PRACTICA FOLLOWS. 

Take in the Name of God and the Holy Trinity, fine and well cleansed Antimonii ore, which looks nice, white, pure and internally full of yellow rivulets or veins. It may also be full of red and blue colors and veins, which will be the best. Pound and grind to a fine powder and dissolve in a water or Aqua Regis, which will be described below, finely so that the water may conquer it. And note that you should take it out quite soon after the solution so that the water may conquer it. And note that you should take it out quite soon after the solution so that the water will have no time to damage it, since it quickly dissolves the Antimonii Tincture. For in its nature our water is like the ostrich, which by its heat digests and consumes all iron for given time, the water would consume it and bum it to naught, so that it would only remain as an idle yellow earth, and then it would be quite spoilt. 

Consider by comparison Luna, beautiful clean and pure, dissolved in this our water. And let it remain therein for no more than a single night when the water is still strong and full of Spirit, And I tell you, that your good Luna has then been fundamentally consumed and destroyed and brought to naught in this our water. 

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Steele, Robert. "Roger Bacon and the state of science in the thirteenth century." In Studies in the history and method of science, ed. Charles J. Singer, ii, 121-150. Oxford Clarendon P, 1921. 

What Bacon in respect to the method of the investigation of nature in general perceived and expressed has long been undervalued what he has given us of particularities or announcements of discoveries is often overestimated. A. G. Little lists thirty-six titles of works by Roger Bacon and as many more doubtful or spurious.78 Among... 

Rosicrucians were indeed mystics, but their studies were above all of a purely physical and experimental character their association of mysticism and chemistry was founded upon analogies the truth of which could be demonstrated in the laboratory and duly verified by the physical senses. No metaphysical proposition was accepted by them which could not be fully confirmed by scientific demonstrations, according to the practice of Roger Bacon, the father of the experimental method. 

Gunpowder was probably first used as early as the eleventh century. The English natural philosopher Roger Bacon (1214-1294) described a method for making gunpowder in 1242. 

English natural philosopher Roger Bacon describes a method for making gunpowder. 

Scientific method (Roger Bacon) Bacon develops rules for explaining how scientists practice science that emphasize empiricism and experimentation over accepted authority. 

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