Fig. 5.— THE VALLEY OF THE ENDARIKI RIVER. 
The photograph shows a ravine that has been excavated on the floor of the main valley 
and filled with loess which has accumulated during a drier period. The loess is now being 
excavated by the river, the discharge of which must have again increased. 
Photographed by Hon. Wm. MacGregor Ross. 
Fig. 6.— FUMAROLE DISCHARGING STEAM AND 
DEPOSITING SULPHUR, NJOROWA GORGE. 
Photographed by Hon. Wm. MacGregor Ross. 
\To face p. 439' 
