This question we may very well ask if we intend to devote time and trouble to its pursuit. Are we to content ourselves with tales of haunted houses, accounts of telepathy among primitive peoples, and research into the esoteric literature of the past? These things certainly have their value; all available occult phenomena should be carefully investigated, not only for the sake of obtaining knowledge, but also for the sake of unmasking charlatans; and the results obtained by investigators in the past are of the greatest value for counter-checking the results we are obtaining at the present day.

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