But I reply, if the superficies betwixt these two enlightened parts remaine darke because of its opacity, then would it alwaies be darke, and the Sunne could not make it partake of light more then it could of perspicuity: But this contradicts all experience as you may see in _Galilæus_, who affirmes that when the Sunne comes nearer to his opposition, then that which is betwixt them, both is enlightned as well as either. Nay this opposes his owne eye-witnesse, for he confesses himselfe that he saw this by the glasse. He had said before that he came to see those strange sights discovered by _Galilæus_ his glasse with an intent of contradiction, and you may reade that confirmed in the weakenesse of this answere, which rather bewrayes an obstinate then a perswaded will, for otherwise sure hee would never have undertooke to have destroyed such certaine proofes with so groundlesse a fancy. [Sidenote 1: _Cap. 11._] But it may bee objected, that ’tis almost impossible, and altogether unlikely that in the Moone thete should be any mountaines so high as those observations make them, for doe but suppose according to the common principles, that the Moones diameter unto the Earths is very neere to the proportion of 2. to 7, suppose withall that the Earths diameter containes about 7000 Italian miles, and the Moones 2000 (as is commonly granted) now _Galiæus_ hath observed that some parts have been enlightened when they were the twentieth part of the diameter distant from the common terme of illumination, so that hence it must necessarily follow that there may bee some Mountaines in the Moone so high, that they are able to cast a shadow a 100 miles off. An opinion that sounds like a prodigie or a fiction; wherefore ’tis likely that either those appearances are caused by somewhat else besides mountaines, or else those are fallible observations, from whence may follow such improbable inconceiveable consequences. But to this I answere: 1. You must consider the height of the Mountaines is but very little, if you compare them to the length of their shadowes. Sr. _Walter Rawleigh_[1] observes that the Mount _Athos_ now called _Lacas_ casts its shadow 300 furlongs, which is above 37 miles, and yet that Mount is none of the highest, nay _Solinus_[2] (whom I should rather believe in this kinde) affirmes that this Mountaine gives his shadow quite over the Sea, from _Macedon_ to the Ile of _Lemnos_ which is 700 furlongs or 84 miles, and yet according to the common reckoning it doth scarce reach 4 miles upwards, in its perpendicular height. [Sidenote 1: _Hist. l. 1. c. 7. § 11._] [Sidenote 2: _Poly. histor. c. 21._] 2. I affirme that there are very high Mountaines in the Moone. _Keplar_ and _Galilæus_ thinke that they are higher than any which are upon our earth. But I am not of their opinion in this, because I suppose they goe upon a false ground whilst they conceive that the highest mountaine upon the earth is not above a mile perpendicular.