[English translation]

Make the fire at the beginning very lively and draw off the first water from the top. Be advised that when you see the gases coming, quickly change the receptacle and put under another to receive these gases which are converted into reddish oil. Wrap the joint of the flask so it does not leak, using very good plaster, because in this consists all the importance of your work. Do not let the gases escape, neither by love nor force. Make the fire more temperate and gentle, always continuing it steady with dry wood and you will see these gases coming as was done at first but not as much because they are issuing from water at the top. At first it will be a little less and it will be very reddish red and of the greatest potency, more than all other oils. It is used in medicine and outside of medicine. The philosophers in the works of alchemy call it the 'Green Lion' and it congeals mercury and has the most potent virtues, almost incredible, and in all its actions it is wonderfully potent.... 145
Now we will speak of the virtues of the first oil of copper sulfate, first described above. I say that this oil has so much potency that it consumes everything and it is not burned.

Another.
If you put iron, copper, tin, lead or wood in this oil in a short time you will see it consumed and converted to vapor, except olive wood and ivory. These two are not consumed and they are made resistant.

Another.
If you put a drop on a cape or clothing that was in 4 or 6 or even in 10 folds, it consumes all in this way. At first you do not see any sign but if you examine the garment, all the holes are seen where the fabric was consumed completely.

Another.
If you put a single drop in the middle of your hand it will pass quickly from one side to the other without pain and you will feel nothing.

Another.
If you put 2 drops in a glass of sweet wine, it will remove the sweetness at once and give it a certain burnt flavor very appetizing to taste. It gives you a very good stomach and will make you look younger and with very good breath. It clears the eyesight and preserves the memory. It removes corns rapidly. This has been tested.

Another.
It is powerful against plague, given to drink with water of marigold and with water of burdock, if it is given before the humor is polluted and before it arrives at the heart.

Another.
It is powerful to cure epilepsy when half a dram is given to drink on a empty stomach in half a glass of water of decoction of betony with a little round birthwort and with a little Arabian lavender and a little musk. When it has been taken, then take ½ ounce of a decoction of wormwood to restore the appetite.

Another.
It is powerful in pain in the hips, given with a little water of broom.

Another.
It is powerful in sickness of the spleen when a little is given in the morning with water of ash tree. It cures sickness of the liver when it is given with water of endive and of agrimony and of the herb liverwort, each the same amount. Give it in the morning on an empty stomach at an early hour and in a short time the spleen will be healed.

Another.
It is powerful to cure sickness from worms in any person, young or old, by giving 1 scruple with 1 ½ ounces of water of couch grass.

Another.
It is useful in curing a bloody flux when given with a wine decoction of rosemary.

Another.
It is useful to cure all kinds of fever when given before the paroxysm with a decoction of centaury and of rosemary cooked in wine. It cures the quartan fever when it is boiled with myrrh.

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[Italian transcript]

et dali il foco inel principio al quanto galliardo et cavali prima da dosso l’aqua. Et stia advertito como tu vedi avenire li spiriti presto li muta il recipiente et ne metti sotto un altro per ricevere quelli spiriti li quali se corvertirano in olio rubificato infassandoli bene la congiontura dela bocca chel non possa respirare con bonissimo stucho perche in questo consiste tutta la inportantia del opera tua a non potere ussire ne per amore ne per forza. Et dali il foco piu temperato e adasio e sempre continuandolo con legna seccha el foco uguale. Et vedrai avenire quelli spirito como a fatto el primo, ma non sarano tanti perche essendoli ussito l’aqua da dosso sera um poco manco assai del primo et sera rosso rubicondissimo e de potentissimo piu che tutti li altri olii, li quali si opera in medicina et fora di medicina. Et li filosofi lo chiamano inel opera del archimia ‘Leon verde,’ il quale di subito congella il mercurio et a de potentissime virtu quasi incredibile et in tutte le opere si fa valere mirabilmente.
Ora noi diremo dele virtu del primo olio del vitrolo romano primo ditto di sopra. Io dico chel ditto olio a tanta possanza che ogni cosa consuma e non brusa.
Item.
Se tu meterai inel ditto olio ferro, rame, stagno, piombo o legno in breve tu lo vederai essere consumato e convertito in fumo, eccetto il legno di ulivo et l’avoglio e questo non consumano et li fano ressistentia.
Item.
Se tu ne metesti una gioza sopra a una cappa o vesta et che la fusse a 4 o 6 overo a 10 pieghe, tutte le consuma a questo modo. Non pare al presente segno veruno ma se tu scoti la vesta tutti que buchi si vedrano tanto consuma crudelmente.
Item.
Se tu ne meterai una sol gioza in mezo dela tua mano presto presto te la passera da un canto al altro per senza passione e non sentirai nulla.
Item.
Se tu ne meterai 2 giocce in uno bichiere di vino dolce disubito li leva il dolce e li da uno certo bruchettino molto apettitevole al gusto. Et ti fa bonissimo stomaco e ti fara ringiovanire e con bonissimo fiato et purificha la vista et mantine la memoria et manda via i calli e presto. Di provata.
Item.
Vale a sanare el morbo datto a bere con aqua de fiori d’ogni mese et cum aqua de barbena et sia datto inanti chel humore sia corotto e che prevenga al core.
Item.
Vale a rissanare il mal caducho, dandone da bere la matina a stomaco digiuno una meza octava cum mezo bichiere di aqua di dicottione di bertonicha con uno poco di astrologia rottonda e con uno poco de stichadosso arabicho et uno poco de castore e quando se piglia dopoi toglie onza s de dicotione de assenzo che restaura lo apetitto.
Item.
Vale al male del fiancho dandone um poco con aqua de ginestra.
Item.
Vale al male dela milza, dattone um poco per matina con aqua de frassino. Et sana il mal del fegato, dandone cum l’aqua de indivia e de eupatorio et de erba fegatella, ana. Et dala la matina et fa che digiuni insu una bona ora et in breve tempo sera guarito.
Item.
Vale a guarire il male deli vermi a ogni persona grandi o piccoli, dandone uno scropulo con onze js de aqua di gramigna.
Item.
Vale a sanare il fluxo del sangue, datto con vino de dicotione de rosmarino.
Item.
Vale a sanare tutte le sorte febre, datto avanti il parascissmo con dicotione di centaurea et de rosmarino cotto in vino. Et sana la quartana dove sia bulito la mirra.