A distinction was made between black and white witches. The former were those who had leagued with Satan for the purpose of doing injury to others,[i.412] while the latter class was composed of such persons as had resorted to the arts and charms of divination and sorcery in order to protect themselves and others from diabolical influence. They were both considered as highly, if not equally, criminal. Fuller, in his "Profane State," thus speaks of them: "Better is it to lap one's pottage like a dog, than to eat it mannerly, with a spoon of the Devil's giving. Black witches hurt and do mischief; but, in deeds of darkness, there is no difference of colors. The white and the black are both guilty alike in compounding with the Devil." White witches pretended to extract their power from the mysterious virtues of certain plants. The following form of charmed words was used in plucking them:— "Hail to thee, holy herb, Growing in the ground; On the Mount of Calvarie, First wert thou found; Thou art good for many a grief, And healest many a wound: In the name of sweet Jesu, I lift thee from the ground." Then there was the evidence of ocular fascination. The accused and the accusers were brought into the presence of the examining magistrate, and the supposed witch was ordered to look upon the afflicted persons; instantly upon coming within the glance of her eye, they would scream out, and fall down as in a fit. It was thought that an invisible and impalpable fluid darted from the eye of the witch, and penetrated the brain of the bewitched. By bringing the witch so[i.413] near that she could touch the afflicted persons with her hand, the malignant fluid was attracted back into her hand, and the sufferers recovered their senses. It is singular to notice the curious resemblance between this opinion—the joint product of superstition and imposture—and the results to which modern science has led us in the discoveries of galvanism and animal electricity. The doctrine of fascination maintained its hold upon the public credulity for a long time, and gave occasion to the phrase, still in familiar use among us, of "looking upon a person with an evil eye." Its advocates claimed, in its defence, the authority of the Cartesian philosophy; but it cannot be considered, in an age of science and reason, as having any better support than the rural superstition of Virgil's simple shepherd, who thus complains of the condition of his emaciated flock:— "They look so thin, Their bones are barely covered with their skin. What magic has bewitched the woolly dams? And what ill eyes beheld the tender lambs?"