| # | Title | Artist | Length |
|---|
| 1 | Mutual Affinities of Organic Beings: Morphology: Embryology: Rudimentary Organs 1 | Charles Darwin | 5:38 |
| 2 | Mutual Affinities of Organic Beings: Morphology: Embryology: Rudimentary Organs 2 | Charles Darwin | 6:14 |
| 3 | Mutual Affinities of Organic Beings: Morphology: Embryology: Rudimentary Organs 3 | Charles Darwin | 5:36 |
| 4 | Mutual Affinities of Organic Beings: Morphology 1 | Charles Darwin | 4:00 |
| 5 | Mutual Affinities of Organic Beings: Morphology 2 | Charles Darwin | 4:47 |
| 6 | Mutual Affinities of Organic Beings: Rudimentary, Atrophied or Aborted Organs | Charles Darwin | 6:18 |
| 7 | Recapitulation and Conclusion 1 | Charles Darwin | 6:00 |
| 8 | Recapitulation and Conclusion 2 | Charles Darwin | 5:34 |
| 9 | Recapitulation and Conclusion 3 | Charles Darwin | 5:07 |
| 10 | Recapitulation and Conclusion 4 | Charles Darwin | 5:49 |
| 11 | Recapitulation and Conclusion 5 | Charles Darwin | 6:47 |
| 12 | Recapitulation and Conclusion 6 | Charles Darwin | 5:31 |
| 13 | Recapitulation and Conclusion 7 | Charles Darwin | 4:32 |
| 14 | Recapitulation and Conclusion 8 | Charles Darwin | 6:52 |
