Page:Philosophical Transactions - Volume 001.djvu/119

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of the decisions in Law concerning Chymical Gold, true or false. Fourthly, what the celebrated Philosophers Stone was among the Ancients, and what they understood by the same?

In the twelfth: First, Of the Seminal Principle of all things, its origine, nature and property; of the way how Nature proceeds in the Generation of Minerals, Vegetables, Animals; of spontaneous Generation; of Zeophyts, Insects of all sorts, and particularly of the Worms bred in Men; together with the causes why Nature would produce such swamrs of infinite sorts of Insects. Secondly, of the variety and differences of Vegetables; of the requisits to know the vertues of Plants, and of the several ways of Engrafting. Thirdly, of the Art of Distilling, whereby Nature is imitated, as doing all her under-ground Works, in the Opinion of this Author, by Distillation. Fourthly, of the Laboratories of various Arts, in which, according to Natures pattern, used in her Subterraneous Operations, strange things may be performed: where treating of Chymical Secrets, the truth of the Preparation of Aurum potabile is discussed, and the Magisteries of Gold, Silver, Iron, Tin, Copper and Lead, examined: to which is subjoyned an Appendix, furnishing such Rules, whereby Students in Chymistry may be directed in their work, and true Operations distinguished from false ones. Fifthly, of Metallostaticks, whereby the mixture of Mettals and Minerals may be certainly known; together with a way of weighing the Proportions of moist and dry, existent in every Compound, as well Vegetable and Animal, as Mineral. Sixthly, of Glass-making, where is treated of the Nature of Glass; of the Artificial Production of all sorts of Precious Stones, partly from the Authors own Experiments, partly from the Communication of his Friends, and the Collection of the best Writers upon that subject. Seventhly, of Fire-works, where the Invention and Preparation of Gun-powder is largely discoursed of, and the ways of making Squibs, Fires burning in Water,

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