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.

78. Aqua fortis mix'd with the Spirit of Wine of Lully. In Elucidat. Testam. pag. 147. Artis aurifer.

TAke of Vitriol one part, of Nitre one part, of Alume a fourth part, mix them all well together, and distil with a gentle Fire, till the Liquor is gone over, then give a stronger, and lastly most strong, till the Alembick grows white, for then is

the Aqua fortis prepared. Then take of the aforesaid Water one pound, put it in a large Cucurbit, and pour it upon four ounces of Aqua Vitoe (Aqua ardens) four times distilled, and put an Alembick on with its Receiver, then will it make great noises, boyling exceeding violently without Fire; and there∣fore the VVaters ought to be mixed by little and little. Then put it into a less Cucurbit, and put on an Alembick with its Receiver, and distil the Water in Balneo, that a Matter may remain alone at the bottom of the Vessel in the form of Ice; pour back the water, and distil again, and this repeat nine times, then will an Oyl or Matter like Ice remain in the bot∣tom.

This Menstruum of Lully is clear, and therefore requires not our Explanation. But it is described by an Anonymous in Rhena∣nus, thus;