f 44 ) o ( 



cura validioribiis chordis , valvulis , & proceflibus membranofis 

 (ad laceraliuoi Sinuum difFerenciam) conftruicur ; iziftrumen- 

 tis videlicec cruori incra hunc Sinum recardando , indeque for- 

 cius exprimendo inferviencibus ; uc alcernis curgcnci^ ac compref- 

 fionis nixibus incencum a nacura fecrecionis opus , pro re naca, 

 fuccedac , pr^fercim in commodum fluidi, quod per fubflraeas 

 glandulas exeernendum eft, uc infra conftabic. 



Redius ergo in fuperna Cerebri parce , fcilicec fupra ucrum- 

 que ejusdem limbum, Sinus longicudinalis cradlui proxime in- 

 cumbcncem, infidenc glandul^ ; qua^, cum a nullo fuperftraco 

 gravi corporepremancur, libcriushumorem proprium efFunde- 

 re , acque excrecoria vafa absque rupcurse , auc ftrangulacionis, 

 m ica dicam , mecu quaquaverfum producere pofTunc. 



Exprsefacisglandulis innumera emerguncfila, qux tocidem 

 funcexerecoriavafcula, quorum exiftcnciam olim non levi con- 

 jedura aflecucus fueram, tandem vero per aucopfiam , fenfibus 

 percepi : hxc enim lymphacica a Dura Meningc fanguiferis incime 

 aflbciaca, & implicaca , in Piam Meningem implancancur , huicque 

 firmilTimeadh^refcuncopc nonmodo fanguiferorum , fed plu- 

 rium eciam fibrarum aDura Meninge proveniencium; quajpro- 

 cul dubio vaforum nexum , & ftabilicacem confirmanc , ne in mo- 

 ribus tam facile dirumpancur, 



Per has vero fibras , & vafa ica invicem junguncur Meninges, 

 ec , fi hunc ipfarum nexum auferre cencaveris , id nifi diligcnciflTime 

 infticuatur, Pia facillime divellatur , inta6lis remanencibus vafis; 

 fi vero cauce procefleris , Piam Meningem manu leyicer depri- 

 mendo, lacerancur duacaxac fibr^,& vafa; cx quorum orificiis 

 divcrfas , & diftinSas liquorisgucculas decidere conlpicies; cruo- 

 ris fcilicec, & lymph^ pellucidaj. 



Uc aucem h^c commodius obfervencur , cavendum primo 

 in fedlione cranii, ne Dura Meninx, quancum fieri poceft, ferra 

 I^dacur ; deinde Cranium ab ipfa accence diducendum , & , fi 

 poflibilefic, Meninxmanu, vel inftrumenco tenuiori verfus cerc- 

 prum deprimenda, ne ob jmprbofam adhsefipnerp (fi b^c adfic) 



