Four books of Johannes Segerus Weidenfeld concerning the secrets of the adepts, or, of the use of Lully's spirit of wine : a practical work, with very great study collected out of the ancient as well as modern fathers of adept philosophy : reconciled together by comparing them one with another, otherwise disagreeing, and in the newest method so aptly digested, that even young practitioners may be able to discern the counterfeit or sophistical preparations of animals, vegetables and minerals, whether for medicines or metals, from true, and so avoid vagabound imposters, and imaginary processes, together with the ruine of estates.

From the Receipts we observe,

1. That these Menstruums are simple Vegetable Menstruums of the Fifth Kind dissolved in Acids. Dissolve any of them in common Aqua fortis, and you will have a Menstruum of this Kind; but take away the Acid, and it will be a Vegetable Menstruum again, as it was before.

2. That these Menstruums are by reason of the Acidity both sooner made, and do more powerfully operate than the said Men∣struums of the Fifth Kind.

3. That they are not always made of the Spirit of Philosophical Wine, but also with any common Oyley Matter, provided it be un∣dertaken by an Artist expert in the Method of making the Spirit of Philosophical Wine.

4. That these Menstruums do by their own strength without any addition of Common Argent vive, reduce Metals and Mine∣rals into running Mercury.

5. That Metals dissolved in these Menstruums, and sublimed, are properly enough called Philosophical Mercuryes, because as Common Mercury sublimate, so these are most easily resuscitated into running Argent vive.