iv THE BUILDING OF THE TSAVO BRIDGE 47 
temporary bridges over the river. These we made 
in the roughest fashion out of palm trees and logs 
felled at the crossing places, and had a flood come 
down they would, of course, have both been swept 
away ; fortunately, however, this did not occur until 
the permanent work was completed. The whole of 
‘“ HEERA SINGH MADE A WILD SPRING INTO THE WATER TO GET CLEAR 
OF THE FALLING STONE.” 
this feeding line was finished in a very short time, 
and trollies were soon plying backwards and 
forwards with loads of stone and sand, as we also 
discovered the latter in abundance and of good 
quality in the bed of the ravine. An amusing 
incident occurred one day when I was taking a 
photograph of an enormous block of stone which 
