L I B E R b'v"6 D E'C I M V S. Ay$ 



pueri interdiu ri6el:uc|; alternatim igne alunt aridis lignis iri foeu impofi tis. 

 At quibus una tantumodo fornax eft,ututur ea fecuda,qtra: cx tribus came 

 ris conftat: na ut proximi materia uefperi inijciut in olias : manc uero recre* 

 mentis detra&is opera uitrea coficiut : qtuc in fuprema camcra,ut akeri , re* 

 condut. Veru fecuda fornax, fiue ex duabus, fiue ex tribus camcris conftite 

 rit,atq; etia prima,fiat ex latcribus crudis in fole ficcatis :qui ducti fint ex ter 

 ra,qucc facile igni necp liquefcit,nec in puluerem refoluitunet qux a lapillis 

 purgata fit,atq? bacillis uerberata: eade terra calcis loco lateres interlinatur: 

 ex eade figuli formet ta uafa cp ollas,eacp in umbra ficcet. Duabus partibus 

 abfoluta reftat tertia.Mafla uitrea in prima foriiacc co,quo diximodo,c6fe 

 cT:a & fra&a miniftri fecunda excalfaciut,ur ea fragmeta recoquat.Dum ue^ 

 ro hoc agut,interea olla: in prima fornace primu lcnto igni calefiunt, ut hu* 

 more exhalet:dcinde acriori,ut ficcata: rufefcat : mox uitrarij huius os aperi 

 unt,& ollas forcipe prehenfas,fi rimis no fathifcut, celeriter in fecuda repo* 

 nut;et recalfaclas fragmetis uitrese mafTa:,uel uitri c5plent:deinde feneftras 

 oes luto & laterib. obftruufcuiufq; loco duabus tantumodo feneftcSlis re* 

 lidi's,de quaru altera infpedat & fiftula recipiut uitru,qd ollx in fc cotinet: 

 in alterareponutaltera fiftulautcaIidafiat:utraq;orichalcea,uel xnea uei 

 ferrea eft,tres pedes longa: quin ante feneftellas crufta marmoris fornici im 

 ponitunatcp ei rurfus terra aggerata &ferru: hoc fiftula in fornac^immifsa 

 retinet,illa octilos uitrarij ab ignis calore tuetur: his omnibus ordinc faclis 

 uitrarrj opus perficiendu aggrediuntur.Lignis aut aridis, qua; flamam,non 

 fumu cmittut,fragmeta recoquut:fed quanto diutius rccoxerint,tanto puri 

 ora &magis transiucida ex eis fiut opera:tanto minus maculofa et ucficulis 

 turgefcetia:tato deniq; facilius uitrarfj fuu munus exequutur : quocirca qui 

 materia,ex qua uitru c6ncitur,una modo nocfte coquut,ac mox ex ea opera 

 Uitrea efficiut,minus pura & traslucida faciut,cf qui primo maflam c5ficiut 

 uitrea,dein cius fragmenta,die no&emq; recoquut : atq; hi etia minus pura 

 &traslucida,cj3quiduosdiesnocl:esqjeaderecoquut:nauitribonitasrion 

 folu in materia,cx qua coficitur,fita cft,fed etia in coquedo . Sapius aut uiV 

 trarrj fiftulis rapiut experimentu:fed qjprimu ex eo didicerint fraomenta re 

 co<fta fatis efle purgata, quifq; altera fiftula in olla dcmifla,& pauTatim uer* 

 fata,recipit uitru : qd tanq; lentus aliquis & glutinofus fuccus ad ea adhxre 

 fcit;& quide globofum.Recipit uero tantu,quatu ad opus,qd cfFicere uult, 

 fatis eft:id marmori imprefllim uoluit &reuoluit,ut adunetunatq,- per fiftu 

 la infpiras uefica* inftar inflat : qua fiftula qties infpirat,fsepius uerd infpira 

 re neceiTe habet,toties ea repete remota ab ore ad maxilla admouet,ne flam- 

 mafpiritu redudto inos trahanmox fiftula fublata cfrcu caput in orbem tor 

 ques uitru facit Iongu,aut ide in xreo inftrumento cauo uerfans fiourat : tu 

 recalfaciedo,inflando,premedo,amplificadoinpoculi,ueluafi's,ue1alterius 

 rei figura mente concepta, format:deinde rurfus marm ori imprimit,atq; Gc 

 fundu dilatat : qd altera fiftula in parte interiore copellifpoftea forfice eius 

 os amputat:atq;,fi res hoc poftulat,pedes & anfas affingit:quinetia,fi ei libi 

 tu fucrit,inaurat,& uarijs colorib.pingit . Poftremo in oblongo uafe fi&ilij 

 qd eft in tertia fornace,uel in fuprema fecudee camera reponit,finitq; refrige 

 rari ; qd cu talibus operib. fenfim refrigeratispleniifuerit, bacillo ferreo la« 



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