1. Charles T. Tart [ed.], Altered States of Consciousness (Wiley, 1969). This book is currently out of print, but the author of this article was able to locate three copies on the Internet in a couple of minutes, so you can probably find one if you're interested.

2. See The Reach of the Mind (NY, William Sloane, 1947). Also out of print, also obtainable (see Note 1).

3. Psi refers to mind power: telekinesis, clairvoyance, clairsentience, and so on.

4. In other words: "mind over matter." Throwing dice and attempting to achieve above-chance scores would be an example of an experiment to demonstrate telekinetic force.

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