Typtology

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Typtology

The science of communicating with spirits by means of raps, various codes being arranged for the purpose. The sitters may read the alphabet aloud, or slowly pass a pencil down a printed alphabet, and the rappings will indicate letters that form a message or an answer to some question. One rap may be made to mean "yes," two "no," and so on. Some relationship seems to exist between such rapping and the use of the divining rod and pendulum in dowsing.