P R O OE M I V M. It 



JimiUter Arterhrum^ulfus^ dr 'vfm-^ a pectoris drpulmmum. Si 

 ' enim ijfdem 'vfihta infiruiantpuljkiy acrefj/iratio , df in DiaftoU 

 mtrofumant aerem in camtatesfuas arferU ( v/i vulge dicu/it)(^ 

 in SyJIole per cofdem poros earn Is , df cutisfuUgines emitttmt , nee 

 non medio tempore inter Sjjiolem , dr Diaftolem a'erent 

 eonttneant ; ^T ^uouis tempore aut aerem , aut jpiri^ 

 tiio^atitfutigims. . ^hnd itaquerejfondeant Galeno t quiUbrum 

 feripJit-fNatura fangutnem c on t inert inarterilsy dr nihil prater 

 fanguinem , nimirum nequejpiritu^yneqtie aerem >Jicutab expert^ 

 mentis -.drratiombm in eodem WhxofmleeoUtgere licet. Etfi. 

 in Diafiole replentur arterid ^.b aire introfumpto , in maioripulfu^ 

 maiori fubeunu aeriscop^a, : ergo magnoexijlentepulfi yjitotumt 

 corpw in balneum im??terferl^yveUqi(£tVelole!, necejfeeHpttlfunt 

 flatim aut minor em e[fe-,ata tardiorem mtdto : camper corpKs am- 

 bient is bain ei , aerem intra arteriaspermeare difficiUmftt yftnort 

 impofibilc. Stmiluer , cum omnes artcriA tarn profunda , quhn 

 cutanedr,eodem temporcjd^pari'velocitatedijkndantur; quomodo 

 poterit aer tarn libere,& celeriterpcr cutem^ carnem^ habitumque 

 corporis infrofundtimpertranfire-, quampcrcuticuUmfoUm. Et 

 quomodo Embtjoniim arteria forinfecm in cauitatesjluts aerem 

 per 'uentrem matcrnum^ c^per corpus vteriattrahant ? Velquo- 

 modo PhocdyBalen^, DelphineSycetaceum omnegenuSyC^rpifieso- 

 mnes in profunda maris arteriarum fuarumBiaflole y drSyJfole, 

 tnrimmenjamaquA majjkm celeri pulfu aereminirojumunt y dre- 

 mittunt^ Dicere'vero quod aerem implant at um in aqua abfirbe- 

 ant y dr in aquamfuliginesfuas reddant,figmentohaudabftmiU. 

 Etjitn Syfiolearterixper poros carnisydr cutis yfultginesl' cauita- 

 tibus illorum expclluntycurnon itemjpivitus , quos dicunt etiatrh in 

 illis contineriy cumfpiritHs multo tenuiores fuUginibasfrnt . Etji 

 cum inSyJloleytuminDiaJiole aerem arteriaaccipiuntyd^reddunfy, 



'Vtipulmones in reffirationei cur non dfhecfaciunt inflifioper 



S 1 firtert^. 



