to the Moone, it doth not proceed from the rayes of the Sunne which doth penetrate her body, nor is is caused by any other of the Planets and Starres. Therefore it must necessarily follow, that it comes from the earth. The two first of these I have already proved, and as for the last, it is confidently affirmed by Cælius[1], Quod si in disqu sitionem evocet quis, an lunari syderi lucem fœnerent planetæ item alii, asseveranter asiruendum non fœnerare. "If any should aske whether the other Planets lend any light to the Moone; I answer they doe not".[2] True indeed, the noble Tycho discussing the reason of this light attributes it to the Planet Venus, and I grant that this may convey some light to the Moone, but that it is not the cause of this whereof wee now discourse, is of it selfe sufficiently plaine, because Venus is some times over the Moone, when as shee cannot convey any light to that
