1891 - 92 .] Dr R. W. Felkin on the Wanyoro Tribe. 
137 
Physical Features of the Country . — It may be divided into two 
portions — a mountainous region, which extends from the Albert 
Nyanza to about 32° E. long.; and a plain, which slopes from 
thence to the Victoria Nile. The mountainous region consists of 
low mountain ranges and isolated peaks, many of the latter reaching 
a height of from 4000 to 5500 ft. above sea-level. Most of the hills 
are dome-shaped. From the mountain chains issue spurs, forming 
valleys through which streams flow. The country is extremely well 
watered, and practically drains to the west into the Albert Nyanza 
and to the north into the Nile ; in the height of the rains a large 
quantity of water rushes down the deeply cut-out beds of the 
streams. Many of these are choked with papyrus, which also grows 
luxuriously around the Albert Nyanza. One river, the Kafur or 
Kafu, or River of Death, flows into the Nile near Mruli, and drains 
the eastern part of Unyoro. The country is fairly well wooded, but 
the forests are here and there separated by tracts of country over- 
grown with high grass ; the underwood in the forest is very dense. 
Geology . — The formation of the rocks in Unyoro is volcanic and 
metamorphic. The upper soil consists of grey fine-grained loamy 
detritus or thick dark-brown loam resting on red quartz. Sandy 
clay crops up at times, and a considerable quantity of ironstone is 
found, especially near the Albert Nyanza. 
CHmate.~\JnjOYO possesses a mild climate, and the temperature 
remains fairly constant throughout the year. The mean annual tem- 
perature may be taken to be about 78° F., and the extreme thermo- 
metric variations are not over 30° F. In February at lat. 2° 5' N. 
Baker found the daily range to be 80° to 84° F., at night 56° to 58°. 
At Masindi, 4000 ft. above sea-level, the temperature Avas 62° at 6 
a.in., 78° at noon, and Emin in October records the highest 
temperature at 79 '7° F. The lowest temperature I observed was 
69°, the highest 84° F., and the daily mean was 73°. 
There is an abundant rainfall in Unyoro, the two periods of 
maximum rainfall being, as in Uganda, during April and May and 
October and November. Few observations have been made upon 
which one can base an estimate of the annual rainfall, but it is pro- 
bably rather more than in Uganda, say 60 inches. Thunderstorms 
are very frequent, and the rainstorms in Unyoro occur with south 
and south-east winds. Emin notes that in October there was a 
