LIBER DVODECIMVS. 47^ 



piicri intcrdiu nod-iiq; alrcrnatim ignc aliint aridis lignis i'n Tocij inipofitis, 

 At quibus una tantumodo fornax cfr^ututur ca fcciJida^qux cx tribus came 

 ris conftat: na u t proximi matcria ucfpcri inijciut in ollas : manc ucro rccrc* 

 nicntis dctracHris opera uitrca coficiut : qucc in fuprcma camcra,ut altcri , rcs! 

 condut. Vcru feciida fornax, fiuc cx dual)us, fiuc cx tribus camcris conftite 

 rit,atq> ctia prima,fiat ex lateribus crudis in folc ficcatis :qui ducli fint cx ter 

 ra,qua: facile igni ncqi liqucfcit,nec in pulucrcm rcfoluitunet qua: a lapiliis 

 purgata fit,atq; bacillis uerbcrata: cade tcrra calcis loco latcrcs intcrlinatur: 

 ex eadc figuli lormct ta uafa cp oIlas,cacp in umbra ficcct. Duabus partibus 

 abfoluta rcfrat tcrtia.MalTa uitrca in prima fornacc co,quo dixi modo,cofe 

 ^a Sc fracfla miniftri (ccunda cxcalfaciijt,ut ea fiaameta recoquat.Dum uc^ 

 ro hoc agut,interea ollx in prima fornacc primu Icnto igni calcfiunt, ut hu;: 

 morc cxhalet:dcinde acriori,ut ficcatx rufcfcat : mox uitrarii huius os apcri 

 unt,& ollas forcipe prchcnfas,fi rimis no fathifciJt, celeriter in fcciida repo^s 

 nut:ct recalfa(flas fragmetis uitreac mafrae^ucl uitri copIcnt:deinde fcncftras 

 ocs lato &C latcrib. obftruut:cuiufq^ foco duabus tantiimodo fcncftcllis re^ 

 Ii(ftis,dc quaru akcra infpccftat & fillula recipiiit uitru,qd ollx in fe cotinet: 

 inalterarcponiitaltcra IiftuIautcahdafiat:utraC|5orichalcea,ucl xnca uel 

 ferrca eft,tres pcdes longa: quin antc feneftellas crufta marm.oris fornici im 

 ponitunatcp ei rurfus tcrra aggcrata Sc ferrii: hoc fiftula in fornace immifsa 

 retinct,illa oculos uitrarij ab ignis calore tuctur : his omnibus ordine facflis 

 uitrarf] opus perficicndii aggrediuntur.Lignis aiit aridis, qusc flamam,nori 

 jfiimij cniittijt,firagmeta recoquijt:fcd quafTtig^diutius recoxcrint,tanto puri 

 ora Sc magis translucida ex eis fiiit opera:tanto minus maculofa et ueficulis 

 turgcfcetia:tato dcnicjj facilius uitrarij fuij munus cxequiitur : quocirca qui 

 niateria,cx qua uitrii c6ficitur,una modo no(fle coquijt,ac mox ex ca opera 

 uitrea. efticiijt,minus pura Sc traslucida faciiit,qp qui primo mafiam c5ficiiit 

 uitrca,dcin eius fiagmenta,die no^flemc^ rccoquiJt : atq^ hi etia minus pura 

 Sc traslucida,^ qui duos dics nocfl:escp eade rccoquii{:na uitri bonitas non 

 folij in materia,cx qua coficitur,fita cft,fed etia in coquedo . Sa-pius aijt ui^ 

 trarrj fiftulis rapiijt experimentii:fed cpprimij ex eo didiccrint fi-agmcnta re 

 cocla fatis cfCc piirgata, quifc^ altera fiftula in olla demifta,& paulatim uer^ 

 fata,rccipit uitrii : qd tan^ lentus aliquis Sc glutinofus fuccus ad ea adhacre 

 fcit:& quide globofum.Recipit ucrc) tantij,quatu ad opus,qd cfijcere uult, 

 fatis cft:id marmori impreffum uoluit Sc reuoIuit,ut adunetunatcj? per fiftu 

 ia infpiras ueficcC inftar inflat : qua fiftula qties infpirat,facpius uerc) infpira 

 re neceflre habet,totics ea repete rcmota ab ore ad maxilla admouet,ne flain- 

 ma fpiritu redu(flo in os trahat:mox: fiftula fublata circii caput in orbcm tor 

 ques uitrufacit Iongii,autide in ccreo inftrumento cauo uerians figurat : tii 

 recaIfaciedo,infiando,prcmedo,ampIificado in pocuIi,ueI uafis,uel alterius 

 rei figura mente concepta, tormat:deinde rurfus marmori imprimit,atcjj (ic 

 fundii dilatat : qd altera fiftula in parte intcriore copcllit:poftea forfice eius 

 os amputat:atc[5, fi rcs hoc poftulat,pedes SC anfas aftinoit:quinctia,fi ei libi 

 tii fuer!r,inaurat,& uariis colorib.pingit . Poftrcmc) in oblongo uafe ficflili, 

 qd el t in tcrtia fornace,uel in fuprema feciida' camera rcponit,finitC]^ rcfrige 

 rari : qd cii tahbus operib. fcnfim refrigeratis plcnii fiierit , bacillo ferreo la^ 



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