LIBER DVODECIMVS. 471

a facti una cõmiſceãtur: ad quas adijciatur minuta magnetis particula: certèſingularis illa uis noſtris etiã temporib. æquè ac priſcis ita in ſe liquorꝭ᷑ uitritrahere creditur, ut ad ſe ferrũ allicit: tractũ aũt purgat,& ex uiridi uel luteocandidũ facit: ſed magnetẽ poſtea ignis cõſumit: qui uerò iam dictis ſuccis carent, ipſi duas portiões cineris quernei uel ilignei, uel roborei, uel cerrei, aut,ſi hi in promptu nõ fuerint, fagini uel abiegni cũ una ſabuli uel arenæ permi-ſcent, et addunt, modicũ ſalem, ex aqua ſalſa uel marina factũ, atq; exi guã magnetis particulã: ſed iſti minus candidũ& translucidũ uitrũ conficiunt:uerũcinis ex antiquis arborib. fit: quarum truncus, ubi aſſurrexit ad altitudinẽ ſexpedũ cauatur,& iniecto igni arbor tota cõburitur, ac in cinerẽ uertitur:q̊d fithyeme cũ niues diutinæ ſedent, uel æſtate, cùm nõ pluit: nã imbres alijs annitemporib. qᷓͥd eineres cum terra miſceãt, impuros reddunt: quãobrẽ tunc exijſdẽ arborib. in plures partes ſectis,& ſub tecto cõbuſtis, cinis confiat. Sed fuitrarijs alijs tres ſunt fornaces, alijs duæ:alijs una: quib. tres, hi in prima co-quunt materiã, in ſecũda eã recoquũt, in tertia refri gerãt uitrea uaſa& cęteraopera cãdentia:eorũ prima fornax cõcamerata& furno ſimilis ſit: in cuius ſuperiori camera, longa pedes ſex, lata quatuor, alta duos lignis aridis accenſisres miſtæ coquãtur acri igni donec liqueſcãt,& in maſſam uertãtur uitreã: et-ſi nondũ ſatis à recremento purgatam: ea refri gerata extrahatur& in partesdiuidatur: in eadem fornace ollæ, quæ continebunt uitrum, calefiant.Prima fornacis inferior camera A. Superior B. Vitrea maſſa c.77ETCõãĩ ͤ ñ VV

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