| Main centres: | 1-3 business days |
| Regional areas: | 3-4 business days |
| Remote areas: | 3-5 business days |
The wide appeal of the author's work, recording his observations in the fields of botany, geology, linguistics, ornithology and others, remains for many reasons. "It has the romance of a nineteenth century adventure; it has scientific interest as a reflection of European attitudes towards the knowledge of the natural world in the first half of the nineteenth century; and it has historical value as a unique record of people, environment, and events at a critical moment in the development of South Africa."
