In the Commentary four things have been attempted: first, an explanation, under each section, of ordinary textual difficulties; second, an unpretentious exposition of the myth or a brief statement of the more evident interpretations advanced by philologists or ethnologists; third, an indication of certain additional poems or verses that illustrate the myth; fourth, special mention of a few masterpieces of ancient and modern sculpture and painting that may serve to introduce the student or the general reader to a field of æsthetic profit neglected by the great mass of our people. […] Apollo shot his arrows at the Cyclopes, a deed which so incensed Jupiter that he condemned him to serve a mortal for the space of one year.