← The works of the highly experienced and famous chymist, John Rudolph Glauber, Volume 2
Chapter 38
Of the White and Green Oil of Vitriol
It is worthy of consideration, that from crude Vitriol an Oil is destilled by descent, sometimes white, and sometimes green, according to the condition of the Vitriol. This Oil deserves a singular commendation; for since it is prepared of crude Vitriol, therefore it also contains the spirit of the same, touching which I have above treated. This Oil, made by descent, demonstrates by those its Virtues that it is an excellent and admirable Remedy for the before-mentioned internal diseases. The same Oil whether it be white or green, (but the green is better) if circulated and mixed with the above-commemorated spirit of Vitriol, is a certain and indubitate Remedy against the Falling-Evil, and all its species. But it is worthy your observation, that this disease is seldome so solitary, as not to have other Evils concurrent with it. Indeed, that such a concurrency is, is evidently manifest by all diseases. Hence it is now clear, that a Remedy against the principal Evil is not sufficient, but Secrets against concurrent symptoms are also required. For this cause in my Practise I have designed a peculiar Chapter of the Falling-Evil, not for the principal Remedy sake, which in this place is sufficiently described, but only for the understanding of those things, which concurr together with the first Affect. If other Accidents do not concurr together with the first Affect, there is no need of exhibiting other Medicaments than the principal, which is sufficient. Therefore, touching the green Oil, thus do ye: Graduate it to the highest, that it may be separated from its terrestreity and fæces, in Balneo first, afterward in dry Fire. So in Balneo the phlegm is taken away, and the terrestreity removed by dry Fire, and the spirit of the Oil only is collected, which in it self is circulated. Afterward you may make addition with spirit of Wine, but there is no need of adding more, if it be only to be used as a Primary Remedy, without Medication of coherent diseases.
It is to be given in Water of Pæony, alwaies before the coming of the Fit, whether it be frequent or seldome, &c. Therefore mind the Paroxisms. As soon as the spirit of the Oil finds out the center of the disease, then the Fit is pacified, and thenceforth waxeth more and more gentle. But when it exerciseth a power of Healing, it first of all excites a Vertigo sensible to the Sick, who notwithstanding do not fall nor foam, nor are shaken, or quake, nor deprived of reason, but are seized with a gentle sleep, and are much better presently. At length the Vertigo also ceaseth, and the sleep is ended; yet in the mean while the Medicine must continually be applied, several times reiterated, according to the condition of the Disease and Patient. This way the Cure is to be followed, and all things diligently administred. This belongs not to a drunken Physician, or Doctor Levite.