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Frankenberg, Abraham von, 1593-1652; Rebentrost, David, 1614-1703; Keiling, Georg, ca. 17. Jh. · 1718

be positioned somewhat widely open in a place that is outside and in the open air, such that the nozzle of a pair of bellows can enter it and blow. This must happen continuously, as long as it takes for the glass under the tube to be quickly melted by the heat of the flame and pressed shut with tongs, thereby trapping the wind inside. The rest you know.
The salt of our matter must be elicited with its figir Spiritu fixing spirit. One obtains this Spiritus alchemical symbol for Spiritus in this way: first, expose the extracted Caput mortuum dead head/residue to the open air, ut attrahat so that it may attract, which must be done in calm air without wind or rain. After the attractions, distill it again, let it attract again, then distill again; one can repeat this many times until one sees that the matter or ☉ gold will not attract anymore. Because the attractio attraction of the Spiritus alchemical symbol for Spiritus always occurs with the resolution of its internal fixed salt, it follows that the more often the attraction is repeated, the more the matter is extracted and emptied by the fixed salt, until it finally resolves all the salt into a liquor and can attract nothing more. Before it is exposed, it must always be ground small again. The distillation of the Spiritus alchemical symbol for Spiritus liquor happens through △ fire of suppression from beginning to end.
Take this green salt as much as you wish; set it throughout the entire month of April or May under the open