A SECOND ASCENT. 
265 
Kimawenzi. Sometimes the whole peak will he 
covered down to the parent ridge, with only the pre¬ 
cipitous rocks peeping blackly through the mantle of 
white. At other periods the snow will be reduced to 
an insignificant patch, and the reddish sand which 
fills the crevices and glissades between the lava rocks 
Fig, 55.—Kimawenzi. 
will be left exposed to view. This change from an 
almost complete snow-cap to nearly no snow at all 
may be effected in twelve hours. 
During the whole of our stay in these regions, which 
included the greater part of October, we were sub¬ 
jected constantly to the most violent thunderstorms, 
