Album is attributed to Nigel Douglas McDouall of Logan and includes:
East Africa Rift Valley: January-June 1909; 77 photographic prints, 33 watercolours and 5 pencil studies through the territories of the Uganda Protectorate (Uganda), Congo Free State (Democratic Republic of the Congo) and the North Western corner of German East Africa (Rwanda)
Angola: May-October 1904, 29 watercolours, 4 views from the Africa West Coast steamer with the remainder being landscapes, vegetation and portraits of local people in the south west highland area.
Mediteranean views - 15 unlabelled watercolour views of the Mediterranean, probably Spain, including coastline views, highland scenes, a village scene and 2 views of roads through arid landscapes featuring local people.

•1 box containing papers relating to an expedition to East Africa, Ruwenzori Mountains, (1932); papers seem to be those generated by RBGE Herbarium as opposed to Humphreys himself.