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Knör, Ludwig Wilhelm von, -1754 · 1716

demonstrations. But when one refutes him ex fundamento from the foundation/thoroughly, they say: Why does he not elaborate such things for himself? They usually keep as a cover: they did not have the required costs to work out the process, which, along with their other intrigues, are nothing but rotten fish, as according to the statement of all authors, no great costs are required for it.
We have divided the work into a special introduction, four sections, and a conclusion:
The introduction contains a short and true trial, proving that chemistry is a true and not a deceitful art, and what is required for it. To maintain this, we have chosen the following dictum saying from the Tract. Radix Chymiæ Treatise: The Root of Chemistry:
This art is dear, and easy, and short.
The first section deals 1) with materia matter in general. 2) With metal, salt, and minerals in general. 3) With common and philosophical metal, salt, and