Sir John Harding and G. E. R. Gent, The Dominions Office and Colonial Office List for 1939 1 (London & Dunstable: Waterlow & Sons, 1939), pp. 623–32

Arising out of the discussions of a special Committee appointed in 1930, to consider the question of the unification of the various Colonial Governments’ Services, recognition was given to a single Colonial Service. Within this Service the following unified branches have been established, and it is proposed to proceed with the unification of other branches of the Service:–

Colonial Administrative Service.

Colonial Agricultural Service.

Colonial Audit Service.

Colonial Chemical Service.

Colonial Customs Service.

Colonial Education Service.

Colonial Forest Service.

Colonial Geological Survey Service.

Colonial Legal Service.

Colonial Medical Service.

Colonial Mines Service.

Colonial Police Service.

Colonial Postal Service.

Colonial Survey Service.

Colonial Veterinary Service.