INDEX. 
3 6x 
Elevation and depression in the Great 
Central Range, 35. 
Emergence of the primary fresh-water 
series, 17. 
Engraulicypris pinguis, 124. 
Ephydatia miilleri, 317. 
Eretmodus cyanostictus, description of, 
210. 
Etna in relation to the Apennines, 36. 
Eupera parasitica, 131. 
Euphorbia trees, their part in the forma- 
tion of park-lands, 1 1 5, 117. 
Eurycolpic fold, definition of, 50. 
,, ,, valley, formation of a, 43. 
,, folds of Central Africa, 76. 
,, ,, compared to the canals of 
Mars, 52. 
,, ,, compared to rills on the 
moon, 52. 
,, ,, , extent of 85, 86, 93. 
,, ,, , eastern, the, 40. 
,, ,, , formation of, by lateral 
pressure, 50. 
,, ,, , floor of, 82. 
,, ,, , inter-relationships of, 50, 
5 X - 
,, ,, , position of, 7. 
,, ,, running to the Red Sea, 
132. 
,, ,, , structural features of, 
42-50. 
,, ,, , unique character of, 51. 
,, ,, , volcanoes in the floor of, 
52. 
Evidence as to the nature of the halolimnic 
fauna, 353, 354. 
Examination of the Great African Ridge, 
40. 
Experiments on marine faunae, 12. 
Existing conceptions of the origin of fresh- 
water faunae, 13. 
Extent of the eurycolpic folds, 40, 42, 45 
FAULTING ON NYASSA, 35, 42. 
Fauna, Albert Edward Nyanza, of the, 89, 
I33» HA 
,, , Albert Nyanza, of, 129, 144, 147. 
Fauna, Bangweolo, Lake, of, 127. 
,, , Beringo, Lake, of, 144. 
,, , Congo, of the, 139, 142. 
,, , distinctive character of the halo- 
limnic, 334. 
,, , general fresh -water, 325. 
,, , halolimnic, the, evidence to account 
for, 352, 354. 
,, ,, , of Tanganyika, 328, 
341, 342, 350. 
,, ,, , the, has emanated 
from the sea, 337, 
339, 342- 
,, ,, , hypotheses to account 
for, 336. 
,, ,, , primitive character of 
the, 330. 
,, , Kela, Lake of, 127. 
,, , Kivu, Lake of, 87, 128. 
,, , lacustrine, compared to an island 
flora, 147-151. 
,, , lakes, of the, enquiry into the 
nature of, 31. 
,, , Mwero, Lake of, 127, 144. 
,, , Nyassa of, 3, 124, 125, 126, 147. 
,, ,, , no marine relics among the, 
72. 
,, , Rudolf, Lake of, 132. 
,, , Rukwa, Lake of, 73, 121. 
,, , Shirwa, Lake of, 3, 23, 126. 
,, , Tanganyika, of, 9, 133, 140. 
,, „ , age of, 325, 343. 
,, ,, , ancestral type of, 
343- 
,, ,, , compared to that 
Mwero, 134. 
,, ,, , description of, 217. 
,, ,, , distinctive cha- 
racters of, 143. 
,, ,, , fishes of, 134. 
,, ,, , Jurassic type of 
the, 73, 344. 
,, ,, , marine aspect of, 
141. 
,, , Victoria Nyanza, of the, 144. 
Faunas of the African Lakes, do not 
migrate, 145. 
