In this beautiful expression of primitive faith and hope Romish 259 interpretation has discovered evidence of prayers for the dead, of the invocation of the Virgin Mary, the doctrine of transubstantiation and communion in one kind, and mention of the “sacred heart of Jesus.” Marriott has well shown the grammatical and other difficulties which these forced interpretations create, and the absurdity of importing into antiquity “controversial phrases of comparatively modern theology, utterly unknown to the early church.” Sometimes, by a confusion of metaphor common to both pictorial and literary figurative expression, the symbol of the fish is applied to men as well as to Our Lord. Indeed, this may have been its primary application, and has the sanction of the scriptural designation of the apostles as “fishers of men.” The Greek liturgy adopts the same figure, and, in pursuance of the metaphor, speaks of the rod of the cross, the hook of preaching, and the bait of charity.[425] There are also frequent representations on the sarcophagi and in the frescoes of the Catacombs, doubtless in allusion to this function of the Christian ministry, of men drawing fish out of the water. These, however, must not be confounded with the occasional fishing scenes copied from pagan art; and the symbolical fish must be carefully discriminated from the dolphins which frequently occur on the sarcophagi, and from the “great fish” which swallowed Jonah. It is remarkable that a bronze image with 260 a chalice and fish was found at Autun, in the neighbourhood of the inscription above given. The figure occurs also on certain ancient coins, and in representations of the Phoenician Dagon or fish-god. It is noteworthy that there are in the Catacombs comparatively few representations of the cross, that sacred sign of salvation which in after years became perverted to such superstitious uses; and when it does occur it is generally in some disguised form, and not in that by which it is now generally indicated, familiarly known as the Latin cross. There is probably a twofold reason for this. The very sanctity of the symbol, and the detestation in which it was held by the heathen, conspired to prevent the early Christians from exposing it to their profane gaze. It is almost impossible to conceive the abhorrence in which the cross was held in the early centuries by the Greek and Roman mind. It has for ages been hallowed by the most sacred and venerable associations, and invested with the most sublime and solemn interest as the emblem of the world’s redemption. It has waved on consecrated banners, and been quartered on the arms of earth’s proudest monarchs. It has shone on cathedral spire and dome, and, emblazoned with gold and costly gems, has gleamed on many a sacred shrine. It has been marked on the infant brow in baptism, and held before the filming eyes of the dying; and has been associated with the deepest emotions and holiest hopes of the soul.