Hereupon we see it in _Conjunction_ with the _Sun_, 1. to be obscure, almost none at all; Hinc videmus, in _Conjunctione Solis_, 1. obscuram, imo nullam: in _Opposition_, 5. whole and clear, (and we call it the _Full Moon_;) in _Oppositione_, 5. totam & lucidam, (& vocamus _Plenilunium_;) sometimes in the half, (and we call it the _Prime_, 3. and _last Quarter_, 7.) alias dimidiam, (& dicimus _Primam_, 3. & _ultimam Quadram_, 7.) Otherwise it waxeth, 2....4. or waneth, 6....8. and is said to be _horned_, or more than half _round_. Cæteroqui crescit, 2....4. aut decrescit, 6....8. & vocatur _falcata_, vel _gibbosa_. CVI. The Eclipses. Eclipses. [Illustration] The _Sun_ is the fountain of light, inlightning all things, _Sol_ est fons Lucis, illuminans omnia; but the _Earth_, 1. and the _Moon_, 2. being shady bodies, are not pierced with its rays, for they cast a shadow upon the place just over against them. sed _Terra_, 1. & _Luna_, 2. Corpora opaca, non penetrantur ejus radiis, nam jaciunt umbram in locum oppositum. Therefore, when the Moon lighteth into the shadow of the _Earth_, 2. Ideo cum Luna incidit in umbram _Terræ_, 2. it is darkened, which we call an _Eclipse_, or defect. obscuratur quod vocamus _Eclipsin_ (deliquium) Lunæ. But when the _Moon_ runneth betwixt the _Sun_ and the _Earth_, 3. it covereth it with its shadow; Cum vero _Luna_ currit inter _Solem_ & _Terram_, 3. obtegit illum umbrâ suâ; and this we call the _Eclipse_ of the _Sun_, because it taketh from us the sight of the _Sun_, and its light; & hoc vocamus _Eclipsin Solis_, quia adimit nobis prospectum _Solis_, & lucem ejus; neither doth the _Sun_ for all that suffer any thing, but the _Earth_. nec tamen _Sol_ patitur aliquid, sed _Terra_. CVII. _a_ The terrestial Sphere. Sphera terrestris. [Illustration] The _Earth_ is round, and therefore to be represented by two _Hemispheres_, a..b. _Terra_ est rotunda, fingenda igitur duobus _Hemispheriis_, a..b. The Circuit of it is 360 _degrees_ (whereof every one maketh 60 _English_ Miles or 21600 Miles,) Ambitus ejus est _graduum_ CCCLX. (quorum quisque facit LX. Milliaria _Anglica_ vel 21600 Milliarium) and yet it is but a prick, compared with the World, whereof it is the _Centre_. & tamen est punctum, collata cum orbe, cujus _Centrum_ est. They measure Longitude of it by _Climates_, 1. and the _Latitude_ by _Parallels_, 2. Longitudinem ejus dimetiuntur _Climatibus_, 1. _Latitudinem_, lineis _Parallelis_, 2.