| The Scramble for Africa | History |
| Le Tour du monde en 80 arbres | |
| Boer War | Science |
| Rencontres avec des arbres remarquables | |
| Meetings with remarkable trees | Nature |
| Year of Liberty the Great Irish Reb | |
| Remarkable Trees of the World | Nature |
| The mountains of Rasselas | |
| Arboles excepcionales del mundo | Nature |
| In Search of Remarkable Trees | Nature |
| A Traveller's Companion to Dublin | |
| Dublin | |