Encyclopedias, Almanacs, Transcripts, and Maps
- Responsibility: Overview
- Responsible Conduct of Research
- Ressler, Robert K
- Retinitis Pigmentosa
- Retrocognition
- Retrograde Motion
- Retrograde Motion
- Retroposons and Transposable Elements
- Retropsychokinesis
- Rett syndrome
- Rett Syndrome
- Rett Syndrome
- Reuss, Theodor (1855-1023)
- Reuter, Florizel von (1893-?)
- Reverend Adam Sedgwick
- Review of Indian Spiritualism
- ReVision: A Journal of Consciousness and Transformation
- Revista de Parapsicologia (Brazil)
- Revista de Parapsicologia (Chile)
- Revival of Corpuscular Theories During the Seventeenth Century