Noxious Insects. 



75 



carefully guarded against. All the baggage had to be 

 moved and examined two or three times a day, and so 

 quickly do these pests get to work that during a single 

 night any article left lying on the ground will be com- 

 pletely covered with the sandy secretion, under which 



THE CAMP AT GEEAZI. 



the ants operate, and will be half destroyed. Where 

 white ants were numerous the trees were entirely brown 

 with their workings, and the fallen trunks and boughs 

 were not only brown with the protective covering but 

 eaten through, so that at every step on an apparent 

 mound of earth one crushed through the shell of a 

 fallen tree. 



