Protea Bookshop, Pretoria
Here is another bookshop where you may find back issues of the BSN series, as well as an excellent selection of Afrikaans literature.
https://www.proteaboekwinkel.com/
British Settlers in Natal, 1824-1857, by Shelagh O'Byrne Spencer.
Expert Research on the First Wave of British Immigration to Natal, South Africa
Here is another bookshop where you may find back issues of the BSN series, as well as an excellent selection of Afrikaans literature.
https://www.proteaboekwinkel.com/