Annual report on Sierra Leone / Colonial Office.

Great Britain. Colonial Office.

Date:: [1958]

Catalogue details

Licence: Public Domain Mark

Credit: Annual report on Sierra Leone / Colonial Office. Source: Wellcome Collection.

12/146 (page 10)

but photographic conditions were such that it was not possible to complete all work called for under the contract. In August a further grant of £18,325 was made under Colonial Development and Welfare Scheme D.3508 and a contract placed with the Aircraft Operating Company (Aerial Surveys) Limited who began work at the beginning of December. The Directorate of Overseas Surveys arranged to provide a survey team and all equipment to undertake the observation and measure¬ ment of a new triangulation framework which would form the neces¬ sary ground control for mapping from air photographs, and would also be of further benefit as it would form the basis for future survey work in the country. At the end of the year two of the Directorate’s surveyors were engaged on this scheme. Details of Colonial Development and Welfare schemes which were either initiated or in progress during the period under review are shown in Appendix I.