There are many kinds of spirits which will permit themselves to be invoked by man and become his servant. Of these I will list a few:
"Aciel: The mightiest among those who serve men. He manifests in pleasing human form about three feet high. He must be invoked three times before he will come forth into the circle prepared for him. He will furnish riches and will instantly fetch things from a great distance, according to the will of the magician. He is as swift as human thought.
"Aniguel: Serviceable and most useful, and comes in the form of a ten-year-old boy. He must be invoked three times. His special power is to discover treasures and minerals hidden in the ground, which he will furnish to the magician.
"Marbuel: A true lord of the mountains and swift as a bird on the wing. He is an opposing and troublesome spirit, hard to control. You must invoke him four times. He appears in the person of Mars [a warrior in heavy armor]. He will furnish the magician those things which grow above and under the earth. He is particularly the lord of the spring-root. [The spring-root is a mysterious herb, possibly of a reddish color, which mediæval magicians asserted had the property of drawing forth or opening anything it touched. If placed against a locked door, it would open the door. The Hermetists believed that the red-capped woodpecker was specially endowed with the faculty of discovering spring-root, so they followed this bird to its nest, and then stopped up the hole in the tree where its young were. The red-crested woodpecker went at once in quest of the spring-root, and, discovering it, brought it to the tree. It immediately drew forth the stopper from the entrance to the nest. The magician then secured the root from the bird. It was also asserted that because of its structure, the etheric body of the spring-root was utilized as a vehicle of expression by certain elemental spirits which manifested through the proclivity of drawing out or opening things.]
"Aciebel: A mighty ruler of the sea, controlling things both upon and under the water. He furnishes things lost or sunk in rivers, lakes, and oceans, such as sunken ships and treasures. The more sharply you invoke him, the swifter he is upon his errands.
"Machiel: Comes in the form of a beautiful maiden and by her aid the magician is raised to honor and dignity. She makes those she serves worthy and noble, gracious and kindly, and assists in all matters of litigation and justice. She will not come unless invoked twice.
"Baruel: The master of all arts. He manifests as a master workman and comes wearing an apron. He can teach a magician more in a moment than all the master workmen of the world combined could accomplish in twenty years. He must be invoked three times.
"These are the spirits most serviceable to man, but there are numerous others which, for lack of space, I am unable to describe. Now, if you desire the aid of the spirit to get this or that, then you must first draw the sign of the spirit whom you desire to invoke.
The drawing must be made just in front of a circle made before sunrise, in which you and your assistants will stand. If you desire financial assistance, then you must invoke the spirit Aciel. Draw his sign in front of the circle. If you need other things, then draw the sign of the spirit capable of furnishing them. On the place where you intend to make the circle, you must first draw a great cross with a large sword with which no one ever has been hurt. Then you must make three concentric circles. The innermost circle is made of a
A MAGICAL SWORD.
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A MAGICAL SWORD.

From Levi's The Magical Ritual.
Eliphas Levi describes the preparation of a magical sword in substance as follows: The steel blade should be forged in the hour of Mars, with new tools. The pommel should be of hollow silver containing quicksilver, and the symbols of Mercury and the moon and the signatures of Gabriel and Samael should be engraved upon it. The hilt should be encased with tin, with the symbol of Jupiter and the signature of Michael engraved upon it. A copper triangle should extend from the hilt along the blade a short distance on each side: these should bear the symbols of Mercury and Venus. Five Sephiroth should be engraved upon the handle, as shown. The blade itself should have the word Malchut upon one side and Quis ut Deus upon the other. The sword should be consecrated on Sunday.
A MAGIC CIRCLE.
Click to enlarge
A MAGIC CIRCLE.
From The Complete Book of Magic Science (unpublished).
The above figure is a complete and faithful representation of a magic circle as designed by mediæval conjurers for the invocation of spirits. The magician accompanied by his assistant takes his place at the point formed by the crossing of the central lines marked MAGISTER. The words about the circle are the names of the invisible intelligences, and the small crosses mark points at which certain prayers and invocations are recited. The small circle outside is prepared for the spirit to be invoked, and while in use has the signature of the desired intelligence traced within the triangle.
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long narrow strip of virgin parchment and must be hung upon twelve crosses made of the wood of cross-thorn. Upon the parchment you must write the names and symbols according to the figure which follows. Outside this first circle make the second as follows:
"First secure a thread of red silk that has been spun or twisted to the left instead of the right. Then place in the ground twelve crosses made of laurel leaves, and also prepare a long strip of new white paper. Write with an unused pen the characters and symbols as seen on the second circle. Wind this latter strip of paper around with the red silken thread and pin them upon the twelve crosses of laurel leaves. Outside this second circle make a third one which is also of virgin parchment and pinned upon twelve crosses of consecrated palm. When you have made these three circles, retire into them until at last you stand in the center upon a pentagram drawn in the midst of the great cross first drawn. Now, to insure success, do everything according to the description, and when you have read off the sacred invocation pronounce the name of the spirit which you desire to appear. It is essential that you pronounce the name very distinctly. You must also note the day and the hour, for each spirit can only be invoked at certain times."
While the black magician at the time of signing his pact with the elemental demon maybe fully convinced that he is strong enough to control indefinitely the powers placed at his disposal, he is speedily undeceived. Before many years elapse he must turn all his energies to the problem of self-preservation. A world of horrors to which he has attuned himself by his own covetousness looms nearer every day, until he exists upon the edge of a seething maelstrom, expecting momentarily to be sucked down into its turbid depths. Afraid to die--because he will become the servant of his own demon--the magician commits crime after crime to prolong his wretched earthly existence. Realizing that life is maintained by the aid of a mysterious universal life force which is the common property of all creatures, the black magician often becomes an occult vampire, stealing this energy from others. According to mediæval superstition, black magicians turned themselves into werewolves and roamed the earth at night, attacking defenseless victims for the life force contained in their blood.
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