in cuiꝰ ortu magna fit aeris ꝑturbatio. Ab hac ſtella dicūtur diescaniculares in qͥbus ſāguinē minuere vel medicinā laxatiuā accipere eſt ſūme ꝑiculoſū ꝓpt̓ exceſſūdiſtēꝑantie aeris in caloe̓. Undeyp̄o. in afoꝝ. Ante canē et pꝰ canēet ſub cane moleſte ſunt farmacieibi dicit̉ in ꝯmento. ꝙ an̄ ortū illius ſtelle et pꝰ ortū ſtatim ꝑiculoſum eſt dare potionē laxatiuā qͥatūc eſt aer calidus et ſiccus .ſ. a calido ſigno et a calidā ſtella ⁊ a ſole tūc in leone cū canicula exiſtēte.vn̄ ex modica medicinā corpꝰ fiētnimis calidū et ſiccū et febris forſitan ſeq̄ret̉. Medicina etiā euaporaret et minꝰ oꝑaret̉ cum corꝑispori tūc ex calore aeris ſūt apertivt dic̄ ibidē gal̓. Calor extraneusvires extrahit medicine. Un̄ aqͣcalida repugnat ſolutōni ſi caloraeris tūc eſt fortis. Pretē̓a qꝛ ꝟtꝰinterior tūc eſt debilis ꝑ potiōemvel minutionē plꝰ debilitat̉ Durātaūt dies caniculares a. xv. kal̓. auguſti vſqꝫ ad nonas ſeptēbris etſic ſunt. l. ſicut ibi dicit̉.¶ Ca. xxix. de luce ⁊ eiꝰ ꝓprietatibꝰUUx vt dic̄ Gaſil̓. eſt ſpēsꝑ oīa ſibi ſil̓is. De luce atqͥd ſit ẜm rē vtꝝ ſcꝫ ſit ſb̓avel accides diuerſimode loquunt̉auctores Nā arꝭ. dic̄ lumen nō eſſecorpꝰ nec a corꝑe defluxū. Dam̄.etiā dic̄ lumē ꝓpriā ypoſtaſim .i.ſb̓am nō hr̄e Scd̓m āt btm̄ augᵏſuꝑ gen̄. ad lr̄am. Lux eſt ſb̓a corporea ſūme ſimplex in genere corpoꝝ. ſūme ml̓tiplex in efficacia ſūme mobilis et abſolutē penetra-
tionis et mīme reſiſtētie. et ſummediſparia et ꝯtraria generās et cōciliās. ſūme cōuertibilis oīs naturalis mocōis pͥncipiū ⁊ origo. ſūme ꝑfectibil̓. ſūme iocūdā. ſummecōicabilis. vn̄ luce in corꝑibꝰ nihileſt vtiliꝰ. nihil cōmunius. nihil pulcrius nihil velociꝰ. nihil ſb̓tilius nihil imꝑaſſibiliꝰ. nihil ꝟtuoſius inuenit̉ ¶ Eſt āt dr̄a int̓ lucē ⁊ lumēNā lumē eſt quidā defluxꝰ a luceſiue irradiatio defluēs a ſb̓a lucꝭ.Lucē āt dic̄ ip̄am fontalem ſb̓amſuꝑ quā lumē innitit̉ Si enī lux ꝯfſiderata in ſe eſſꝫ accides nc̄arioeēt ꝑ ſe alicui accidēs qͥa accidēsꝑ ſe cauſat̉ a ꝟa foͣr ſb̓iecti ſui. vn̄ſi lux in aere eſſꝫ accidēs cauſaret̉lux a ve̓a foͣr aeris qd̓ eſſe nō pōtPrete̓a lux mutat ſb̓iectū ſuū Qd̓ptꝫ qͥa lux naturalit̓ eſt pͥus ī oriēte. ꝯn̄ter ꝟo in occidēte. ⁊ lux oriētalis generat ꝓximā ſibi. et ita deinceps vſqꝫ ad occidentē. accidentia enī nō ꝑmutāt ſuū ſb̓iectū. necexͣ illud agūt. ex qͦ videt̉ ꝙ lux nōſit accidēs Prete̓a ſi eſſet accidēsaeris nc̄ario moueret̉ aer ſubitoab oriēte in occidentē ẜm ſubituꝫmotū lucis. ſic aūt moueri ſubitonō cōuenit aeri nec alicui elemētoPretēa luce nihil eſt nobilius. accidens āt eſt ignobilius ſubſtātiaex quo videt̉ ꝙ lux nō ſit accidēscū aer lōge ſit ignobilior ip̄a luceSed ſi lux eſt corpꝰ difficile eſtintelligere qualiter lux ſit in aerevel cū aliquo corꝑe diaphano vtin criſtallo. cuꝫ duo corꝑa nō pn̄tſimul eſſe in eodē loco Non eſt tn̄incōueniens nec impoſſibile ponē̓