In some cases the circle will have to sit several times before the persistent though disconnected and apparently meaningless raps or table-tilts will begin to show positive signs of intelligent signalling. The same thing would probably occur were the inhabitants of the planet Mars to find themselves able to flash signals to our earth--for a long time the flashes would seem meaningless to us, until at last they would seem to manifest a definite intelligent purpose and rhythm. When this stage of the raps or table-tilts has been reached, then the leader of the circle should acquaint the spirits with the code used, and ask definite questions concerning the future conduct of the seance, the answers to which the spirits are requested to give through the signal code of raps or tilts. When these answers begin to "come through" plainly and definitely, then the seance enters a new phase. Spirit Code Signals. In this new phase, when once entered into, the formal set procedure to be followed will be about as follows: The leader of the circle, recognizing the signs of the presence of spirits in the circle, will address them and ask them whether or not there is a spirit present who wishes to convey a message to the circle, or to any one present. Then the spirits signal back in the affirmative or the negative. If the answer be in the affirmative, the circle leader asks the spirits to indicate by the affirmative signal when the name of the right person present is named--and he then proceeds to slowly and plainly name each person present, in succession, until the affirmative signal is received. Or, he may ask the spirits to indicate the identity of the spirit friends present, when their names are called; and he then proceeds to call over the names of the departed friends of those present, as the same are requested by the sitters or visitors to the circle. When the right name is reached, the spirits signal in the affirmative, either by raps of table-tilts, etc. After the question-and-answer line of communication has been firmly and strongly established, more definite information may be obtained by the instruction of the system of "alphabet calling," as described in a preceding portion of this book. In this system, the letters of the alphabet are slowly and clearly called off, in succession, until the affirmative signal is given regarding the letter just called, which indicates that that letter is to be marked down as a part of the sentence. Wonderful messages have been received in this way, although the process is very slow and somewhat tedious in the case of long messages. Ouija Boards.