39 Ruki river, 99 , 13, 38 . Rumania , trade, 98, 150 . Rumbek , minerals, 98, 134 ; mili tary post established at, 1902 , 98, 51; raids by tribes near , 98, 51 . Rusizi river, 99 , 4 , 8 , 128 ; pro jected railway, 99, 69 . Russia , and jurisdiction on the Congo , 99 , 120 ; recognition of International African Associa tion , 99 , 30 ; representatives sent to Berlin Conference, 1884 -5 , 99, 28–9 ; trade, 98, 150 . Russisi river, see Rusizi. Ruwenzori range , 96, 14 , 15, 16, 19 , 99 , 3 . Ruwenzori region , 96, 60 .

Road materials , import, 96 , 84 . Roads, Anglo -Egyptian Sudan, 98 , 66-9 ; Belgian Congo, 99 , 59-60 ; British Somaliland , 97, 26 ; East Africa, construction of new , 96 , 66 ; East Africa Protectorate and Uganda , 96, 59-60 ; Katanga 99 , 111-12 ; Zanzibar Island , 96 , 89-90, 93 . Robecchi, expedition to Italian Somaliland , 97, 33 . Rohlfs, G. , German Consul, dis coveries, 99, 24 ; sent to Zanzi. bar in man -of -war , 1884, 96, 46 . Roman Catholics, Belgian Congo, 99, 57 , missions, 99, 45 , charges against, 99, 42–4 ; on the Congo, 99, 41-4 ; British East Africa , 96 , 52-3 ; war with Protestants and Mohammedans in Uganda, 1892, 96 , 37 . Romans, as rulers of Egypt, 98 , 23. Romolo Gessi, Suleiman slain by , 98, 26. Rope-making, 96 , 92 . Roseires, 98 , 73 ; captured by British , 1898 , 98, 31 ; mules from , 98, 69 ; projected aerial route, 98, 88 ; rainfall , 98, 12 ; road , 98, 67 ; steamer service, 98, 68 ; tug service, 98, 78 . Rovuma river, 96, 47 note, 97 , 99 . Royal Geographical Society, and exploration in Africa, 99, 25 . Ruanda, 96 , 18 ; Bahutu tribe of, 96, 21 ; Buhiga tribe of, 96, 21 ; language used , 96, 21 ; races in 96 , 21 . Rubber, 96 , 67 , 75 , 87 , 91 , 96, 98, 52-3 , 96, 108-9, 162 , 99 , 62 , 74, 75–8, 80 , 95 , 100, 108 ; decline in price, 99, 109 ; export, 96, 81 , 82, 88 , 99 , 75, 76 , 94 , 95, 96 , duties, 96, 84, 99 , 98 ; freight charges , 99 , 63 ; import , 96, 107 ; licence, 99, 100 ; decrease, 96 , 82 ; trade, 98, 155, 99 , 67 , 112 , Ruchuru river, 96, 19 . Rudolf, lake , 96, 1 , 2 , 5, 7 , 10 , 11 , 14, 18 , 98 , 3 , 39 , 41 ; escarpment, 96, 17 ; projected aerial route, 98, 88 ; rainfall , 96 , 8 ; Turkana expedition near, 1915, 98, 41 . Rudolf province, 96, 55 ; guinea worm , 96 , 20 ; population , 96 , 22 . Rufaa , 98, 135 ; labour conditions, 98, 96 ; school, 98 , 62 . Ruiru Farmers' Association , 96 , 80. Rukeri river , 99 , 128 .

S. Sab tribes , British Somaliland , 97, 9-10, 24 . Sabaki river , 96, 3 , 6 ; system , 96, 6 . Sabderat Agreement, 1901 , re migra tion in Anglo -Egyptian Sudan , 98 , 38 . Sabe river , 97 , 3 . Sabei, disturbances at, 1914 , 98 , 49 . Sabinio , Mount, 96 , 14 , 99, 3 , 4 , 39 , 129 . Sacks, empty, import, 98 , 151. 152. Sahara , Central, French influence in , recognised by Great Britain , August 5 , 1890 , 96 , 49 . Sahara desert, 98 , 5 , 87 , 124 . Said bin Sultan , Imâm of Muscat , capital of dominions transferred by to Zanzibar, 1832 , 96, 40 ; defiance shown to , by governors of dependencies, 96 , 40 ; division of dominions ratified by Canning Award , 1861 , 96 , 42 ; reign , and conquests of ( 1804-56 ) , 96 , 40-1 ; relations with Great Britain , 96 , 41 ; and slave trade, 96, 44 , treaty with British re suppression of, 1845 , 96, 44 ; death , 1856 , 96 , 41 . Said , Khedive, 1854-63, proclama tion re aholition of slavery , 98, 26 .

Saif bin Sultan , Imâm of Muscat, naval force sent by , against Portuguese, 1689 , 96 , 40 . Sakania , projected aerial route , 98 , 88 ; railway, 99, 64, 66 ; telegraph lines , 99, 69 . Saleh sect, British Somaliland , 97 , 24 .