| Series | Extent | Year | Author | Title |
| PMHRA 20 | — | 2018 | Arnold McMillin | Breaking with Tradition |
| PMHRA 19 | — | 2015 | Arnold McMillin | Spring Shoots |
| PMHRA 18 | 1150pp | 2009 | Arnold McMillin | Writing in a Cold Climate |
| PMHRA 1 | 147pp | 1969 | ed J. C. Laidlaw | The Future of the Modern Humanities |