Correspondence concerning the Trigonometrical Survey of South Africa, including letters regarding the funding of the survey, particularly with regard to Natal. There are instructions to the officer commanding the Survey Party (fos 28-30), including pay scales for all members of the Party; a report and results of observations made during the trigonometrical observations of Natal (fos 245-248); a report in Dutch from the Surveyor-General (fos 259-279); a map of Natal Colony showing the survey lines, dated 3 November 1884 (fo. 449); and a copy of instructions given to the Surveyor carrying out the beaconing between Kokstad and Kei River (fos 723-736).