| Digest Nr | Subject and Author |
 |
| 2001.11.10.02 | The Practical Ethics of Restoration, from Roger Waring |
| 1998.10.08.05 | Hand Cranked Organs - Practical Considerations, from Bob Conant |
| 1998.10.05.12 | Hand-Cranked Organs - Safety and Practical Considerations, from Joyce Brite |
| 1998.10.05.11 | Hand-Cranked Organs - Practical Considerations, from Ingmar Krause |
| 1998.10.05.10 | Hand Cranked Organs - Practical Considerations, from Fritz Gellerman |
| 1998.09.26.07 | Hand-Cranked Organs - Practical Considerations, from Joyce Brite |
| 1998.01.17.17 | The Practical Applications of 'Jello', from Larry Broadmoore |
| 1998.01.16.11 | Practical Applications of 'Jello', from Damon Atchison |
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