The Mysteries of Crystal Science
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1907. The science of higher thought. This work treats the five mento-psychic senses and their development. These senses are: sixth sense, our intuitional sense or sense of intuition; seventh sense, our dual mental sense or sense of mind reading; eighth sense, our psychic sense or sense of second sight; ninth sense, our telepathy sense or sense of mental telepathy; tenth sense, our passive subjective sense or sense of soul transference.
