| 1 | Slip Kid (alternate Roger vocal, early mix without overdubs) | The Who | 4:35 |
| 2 | However Much I Booze (alternate Pete vocal, early mix) | The Who | 5:36 |
| 3 | Squeeze Box (alternate Roger vocal) | The Who | 2:43 |
| 4 | Dreaming From the Waist (Pete vocal, early mix) | The Who | 4:13 |
| 5 | Imagine a Man (Pete vocal, early mix) | The Who | 4:08 |
| 6 | Success Story (John vocal, early mix) | The Who | 3:24 |
| 7 | They Are All in Love (alternate Pete vocal, early mix) | The Who | 3:12 |
| 8 | Blue, Red and Grey (unedited version) | The Who | 3:15 |
| 9 | How Many Friends (Pete vocal, early mix) | The Who | 4:16 |
| 10 | In a Hand or a Face (early mix) | The Who | 3:24 |
| 11 | They Are All in Love (alternate Roger vocal, early mix) | The Who | 3:07 |
| 12 | Squeeze Box (acoustic stripped mix, 2026) | The Who | 2:43 |
| 13 | Imagine a Man (acoustic stripped mix, 2026) | The Who | 4:11 |
| 14 | They Are All in Love (acoustic stripped mix, 2026) | The Who | 3:12 |
| 15 | How Many Friends (acoustic stripped mix, 2026) | The Who | 4:06 |
| 16 | The Who by Numbers US Radio Spot #2 (radio commercial) | The Who | 1:04 |
| 17 | Keith Moon and John Entwistle Preview (The Who by Numbers with John Peel, BBC 1975) | The Who | 11:10 |
| 18 | However Much I Booze (live at the Summit, Houston, USA, 20 November 1975) | The Who | 5:31 |
| 19 | Slip Kid (live at Madison Square Garden, New York City, USA, 11 March 1976) | The Who | 4:36 |