"For, when Cicero tells us that he had seen the entire Iliad written on skin of such a miniature size, that it could easily be rolled up inside a nut-shell, and Pliny asserts that Nero had a ring with a small glass in it, through which he watched the performance of the gladiators at a distance—could audacity go farther? Truly, when we are told that Mauritius could see from the promontory of Sicily over the entire sea to the coast of Africa, with an instrument called nauscopite, we must either think that all these witnesses lied, or that the ancients were more than slightly acquainted with optics and magnifying glasses. p. 240"