The sitters will do well to occupy their same places at each sitting, unless the spirits indicate otherwise. The medium, or in the absence of a recognized medium the most sensitive person in the circle, should sit in the circle at a place mentally recognized as the "head of the table," even though the table be circular in form. It will be well for the sitters to hold each others' hands at the beginning of the circle, in order to generate the necessary magnetism. But after the circle is actually formed, the sitters should place their hands on the top of the table, close to its edge; the small fingers of the hands of each sitter touching those of the sitter on either side of him--in this way there is a psychic and magnetic battery formed of the sitters, providing perfect connection is maintained. The Spirit Communication Code. At the beginning, the leader should plainly announce the signalling conditions, so as to avoid confusion on the part of the sitters and the visiting spirits (for there are several codes in use, and confusion sometimes occurs). The most general used and approved code is as follows: "THREE indicates Yes; ONE indicates No; TWO indicates 'doubtful'; FOUR indicates 'don't know'; and FIVE indicates 'call the alphabet.'" The numbers refer to the number of raps or table-tilts, etc., given by the spirits in answer to questions asked them. When the alphabet is called for, some one of the circle slowly calls out each letter of the alphabet, in regular order, until a rap or table-tilt indicate that the right letter has been indicated; this letter should then be written down, and the alphabet again called, until the next letter is indicated; and so on until the message is completed. For instance, the name "John" would be spelt out as J-O-H-N, four callings of the alphabet being necessary to obtain the same. The Matter of Time Conditions.