1. There may be such, and we not able to perceive them, because of the weaknesse of our eye, and the distance of those places from us, they are the words of _Fienus_, as they are quoted by _Fromondus_ in the above cited place, _Possunt maximæ permutationes in cœlo fieri, etiamsi a nobis non conspiciantur, hoc visus nostri debilitas & immensa cœli distantia faciunt._ And unto him assents _Fromondus_ himselfe, when a little after hee saies, _Si in sphæris planetarum degeremus, plurima forsan cœlestium nebularum vellere toto æthere passim dispersa videremus, quorum species jam evanescit nimia spatii intercapedine._ “If we did live in the spheares of the Planets, wee might there, perhaps, discerne many great clouds dispersed through the whole Heavens, which are not now visible by reason of this great distance.” 2. _Mæslin_ and _Keplar_ affirme, that they have seene some of these alterations. The words of _Mæslin_ are these (as I finde them cited.)[1] _In eclipsi Lunari vespere Dominicæ Palmarum Anni 1605, in corpore Lunæ versus Boream, nigricans quædam macula conspecta fuit, obscurior cætero toto corpore, quod candentis ferri figuram repræsentabat; dixisses nubila in multam regionem extensa pluviis & tempestuosis imbribus gravida, cujusmodi ab excelsorum montium jugis in humiliora convallium loca videre non rarò contingit._ “In that lunary eclipse which happened in the even of Palme-sunday, in the yeere 1605, there was a certaine blackish spot discerned in the Northerly part of the Moone, being darker than any other part of her body, and representing the colour of red hot yron; you might conjecture that it was some dilated cloud, being pregnant with showers, for thus doe such lower clouds appeare from the tops of high mountaines.” [Sidenote 1: _Disser. 2. cum nunc. Galil._] Unto this I may adde another testimony of _Bapt. Cisatus_, as he is quoted by _Nierembergius_,[1] grounded upon an observation taken 23. yeeres after this of _Mæslin_, and writ to this _Euseb. Nieremberg._ in a letter by that diligent and judicious Astronomer. The words of it runne thus: _Et quidem in eclipsi nupra solari quæ fuit ipso die natali Christi, observavi clarè in luna soli supposita, quidpiam quod valde probat id ipsum quod Cometæ quoque & maculæ solares urgent, nempe cœlum non esse à tenuitate & variationibus aeris exemptum, nam circa Lunam adverti esse sphæram seu orbem quendam vaporosum, non secus atque circum terram, adeoque sicut ex terra in aliquam usque sphæram vapores & exhalationes expirant, ita quoque ex luna._