e,vfg,adJinea:revft^forma-«ionem diminuetur, in quo cafu diameterlentis, jmaior noji-»«ritdiametroaiConcauaForma defumpta. Hacoccafionenotandaefthxcaliaregula.Sivitrum vtragjj>arte,conuexafiguraconftruatur,tunc extendet guartapartc,wtriufq.iliametri. iEtficfuperaibitur alia difficultas, ■quae… … TRA- TRACTATVS SEC VND VS De Luna^ obferuationibus. C A P V T f 3 Jlfj Authoris telefcoplOiLundm aliquodbaberepropriumJumen com^rehenjumjit. £cernendocertaab jncertis^dico indubita«» ^3 tiini eireXunamfuum .principalejfeu pri- j^ mariun:! iuirusni So:.eJiauririe.aflero tame ^ me deprehendifle…
Astronomy · Telescopes · Microscopy
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![An illustration from Novae coelestium terrestriumq[ue] rerum observationes : et fortasse hactenus non uulgatae, 1646, leaf 35](https://img.insideoutlibrary.com/img/1024/ia-novaecoelestiumt00font-35-8.webp)
