aSa A\NOTATIO?JES CIRCA CO\STRrCT. 



3) Hiimiditates modo pliis modo mitias mcrcurio ad- 



hierentcs et Hiixiim retarduntes. 



4) Accelcnuio vcl ret;ird:irio fliixiis pcr vim centrifugam 



orcilliitione n.uiis mercurio imprclBm. 



5) Irreguliritas fluxus ex diucr(;i cohaelione "^rii inter 



le et cum lateribus vitri pro diuerfo caloris frigo- 



risue gradu. 

 §. 3, In juiramus iam quatenus hifce imperfcclioni- 

 bus mcderi pollimus. Qiiod ad primam attinct , ca pcr 

 acris cuacuationcm commodc toliitur. Altcra , tcrtia ct 

 quinta pcr conlcruationem clcpfydrae in codcm caioris 

 gradu remouetur. Qiiartam vcro ; quac maximi momcn- 

 ti cft , quantum cgo quidem perlpicio , incuitabilcm cfle 

 indico. Qimcnimccntrumarcusolcillationis nauis, partim pro 

 diucrfa cclcritatc curfus nauis ct vclorum dilpofitione , 

 parrim pro vnd.uaim agitationc, admodum varict , parum 

 iuuabit , clcpfydram circa ilUid ccntrum conftiruiflc. 



§. 4. PkkuI dubio fibi pcrfuafit C/. KoesJeWits cir- 

 ca htSrc-og^i fui mnrini conftru(flionem vim centrifiignm 

 horologio ' n(>n poffe imprimi , diiin illud intra aunulos 

 libratorios fnfpcnfum fitum pcrpcndicularcm lcmper (cruat. 

 Cum cnim rcliquas inipcrfcftioncs horologiorum mariuo- 

 rum follicitc euitare (\udct , dc vi ccntrifuga cuitnnda nc 

 quidein cog tat. Ncque co refpcxit , quod , naiii 'ad ne- 

 quatorem appropin(iuante , notabilis viS monentis pnrs 

 propter imminutam coi porum giauitatcm pcrcat , fldeo-]ue 

 inotus h(»n)Iogii (cnfibilitcr accclcrari dcbcat. Venim qui- 

 dem cft in j-vendulo longiori cius-modi vis motricis immi- 

 nurioncm nullam rcnfibilcm motus ahcrationcm prodiicc- 

 re , fcd longc aliter ics fcfc lubct in horologiis, vbi ro- 



tula 



