The witch accomplishes her aerial voyages, says the "Witch-hammer," by smearing a vessel, a broom and a rake, a broomstick and a piece of linen, with the witch-salve; then rising she moves forth through the air, visible or invisible, according to her choice. The "Witch-hammer" reminds those who doubt these air-voyages, of Matt. iv. 5, where it is related how the devil carried Jesus up through the air to the pinnacle of the temple. We now proceed to the third part of the "Witch-hammer," the criminal law of the witch-courts, which gives instructions how "sorcerers, witches and heretics are to be tried before spiritual as well as civil tribunals." In regard to preliminary forms of procedure, the "Witch-hammer" lays down first, "That the trial may commence without any previous accusation, and on the strength of a simple report that witches are found somewhere; for it is the duty of the judge in a case fraught with many dangers to the soul, not to wait for an informer or accuser, but, _ex officio_, to institute immediate inquiry." When an inquisitor comes to a city or a village, he must exhort every body by means of proclamations nailed to the doors of churches and town-halls, and by threats of excommunication and punishment, to give information of all persons in any way suspected of the least connection with the practice of witchcraft, or otherwise of bad repute. The informers may be rewarded if the inquisitor thinks it well, by the blessing of the Church, and with money. A box to receive the statements of such informers as wish to be unknown should be placed in the Church. Two or three witnesses are sufficient to prove guilt. In case so many do not present themselves, then the judge may take means to find and summon them, and force them to tell the truth under oath. He has also the right to examine witnesses previous to the actual trial. As for the qualifications necessary to appear as witnesses, the "Witch-hammer" declares that the excommunicate, accomplices, outlawed, runaway and dissolute women are irreproachable witnesses in cases where the faith is involved. A witch is allowed to testify against a witch, wife against husband, husband against wife, children against parents and so on, but if the testimonies of accomplices or relatives are to the advantage of the accused, then they are of no validity; _for blood is of course thicker than water_, and one raven does not willingly pick out the eyes of another.