| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1968 | 978-0-900993-00-8 | Egerton Sykes | Giza Pyramid Complex |
| '' | 978-0-900993-01-5 | Egerton Sykes | Azores and the Early Exploration of the Atlantic |
| 1964 | 978-0-900993-02-2 | '' | Keely Mystery |
| 1969 | 978-0-900993-06-0 | '' | Nicholas of Lynn |
| 1970 | 978-0-900993-08-4 | Verplanck Colvin | Plutarch and the early travellers to the New World |