The method by which he does this varies with the individual, but this is the sum and substance of his procedure: He stimulates his mind so that it vibrates on a higher-than-average plane, using one or more of the ten mind stimulants or some other stimulant of his choice. He concentrates upon the known factors (the finished part) of his invention, and creates in his mind a perfect picture of unknown factors (the unfinished part), of his invention. He holds this picture in mind until it has been taken over by the subconscious mind, then relaxes by clearing his mind of all thought, and waits for
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