metals with some astral tincture added), serves to call celestial reserve-forces of all kinds, if needed. Further, we require these breast-plates and these rings of electrum, which do not bear the name of any planet, but the glorious and blessed name of God himself, as a protection for the conjurers against the conjured spirit. Who he is we shall soon find. Observe here, further, a terrible arsenal which is also necessary for our purpose. Mars is the star of war, murder and passion. The demons of Mars have a corresponding nature, and there exists between them and the tools by which their work on earth is accomplished, a power of attraction. Therefore we have here this heavy sword with which the magic circle is to be drawn; we therefore place in rows these skulls and bones which have been collected in places of execution, these nails, extracted from gallows, these daggers, knives and axes rusty with stains of blood. We must not forget the incense which was kindled on the altar shortly before the first citation. There is a different kind of incense for every planet and its demons. That appropriate for Mars is composed of euphorbia, bdellium, ammoniac, magnet, sulphur, brains of a raven, human blood and the blood of a _black_ cat.[35] It is highly important that the quality of this incense should be genuine. I might quote what Porphyrius says upon this point; but confine myself to pointing out that it has an influence on the conjurer as well as upon surrounding objects. It saturates both the air and the breast of the conjurer with substances that are connected with the planet and its demons. It draws down the conjured being and intoxicates him, as it were, with divine influences, which act on his mind and imagination. As a matter of course we must prepare besides, such implements as are needed in every incantation without bearing any relation to any certain planet. To them belong amulets inscribed with the names of seraphs, cherubs and thrones, and with sentences from the Bible and the sacred books of Zoroaster. To them belong further the magical candlestick of electrum with seven branches, every branch bearing the sign of a planet; and above all the pentagrams, those figures with fine points which no demon can overstep. We shall place the latter as a line of fortification around the magic circle, and we must be sure that no one of the points is broken. Inside the circle between the table, the seven-armed candlestick and the incense-altar there is room for the tripod with the bowl of holy water and the sprinkler. "Having thus made the necessary preparations for our feast, let us think of the guest who is to be invited. "The air of the evening is cool. I close the window, move my study lamp to this table, and ask you to be seated around it. We must consult concerning the invitation, in which we must follow the directions given in this cabalistic manuscript.