O C T A V V S. 



1-4* 



Veru haec lauadi ratio nuper no paru eft immutata: na canalis 6 qui exci<= 

 pit aquacu lapillis nigris et afeilulis penfiifta,qua: perlaminx foramina efi 

 fluit,ad nullu canale trafuerfum,qui eft extra eOclauejpertinet, fed redti pcr 

 cius parietc penetrat iri lacufculu:id aut,qd in canali recto extra eoclaue fub 

 fedit,adolefces trideti raftro radit,qmodo lapilli maiufculi refidet in fundo; 

 quos lotor batillo ligneo efjcit: in coclaue importat: irt canale deuexu cdie*> 

 &os rutro ligneo agitat &C lauat: quinetia lapillos,quos aqua rapuit in cana 

 le deuexo fubiedu ufq? ed refurriptos lauat du puri fianfreliqui uerd lapillt 

 cu arena mifta influut in lacufculu,qui eft in coclaui.Is aut exonerat in duos 

 illos canales magnosdn quoru fuperiorc parte lapilli mcdiocres cu maiufcu 

 lis permifti refidet,in inferiore minUtuli:fed utricp impuri:quare illi fepara* 

 tim eiecli bis lauatur,prius in canali fimplicis affimili, pofterius in canali de 

 uexo.Hi ite bis,prius in area linteis extefis coteda 5 pofterius in canali deue 

 Xo.Canalis fimplicis affimilis ab eo differt capite:qd hic totu habet decliue, 

 alter in medio depreffum.Hic prauerea habet axiculu ligneu, qui in forami 

 nibus duoru crafforu afferu,ad latera canalis affixoru Uerfatur: ut adolefces 

 batillu,quo lapillos facit puros,in eu poffit imponemqd ni faceret nimiu w 

 ftis laborib.defatigaretunin qs ftans totos dies infumit: fed canales magnij 

 fimplicis affimilis,deuexus,area linteis exterifis coteda propterea coftruurt 

 tur in coclaui,cui fornax eft calore per fidilia uel tabulas ferf eas,ex quib.cS 

 ftat,effundes,ut etia hyeme,fi flumina prorfus no coglaciauerint,lotores ftJ 

 um munus exequi pdffintt 



Ottulis primus A, Rxjtrit triim B. Ltc ufculus C. Cthttts migni D. CtnAis fimplias affi- 

 milis E. tixkuks F. AfftrtsG. Eor5 fortmint H. Batillum 1. ConcUut K. forntx L. 





