1. ESP Symposium at the American Psychological Association;American Psychological Association;Journal of Parapsychology,1938
2. Francis Bacon, Pioneer in Parapsychology;International Journal of Para psychology,1964
3. The Case of Ilga K.: Report of a Phenomenon of Unusual Perception;Journal of Parapsychology,1938
4. Signifying Significant Significance;American Psychologist,1972
5. Probability, Logic, and ESP;Science,1956