320 



EASTERN ETHIOPIA 



xxvi 



Hies cause by destroying horses is set forth in many 

 interesting books written by missionaries, explorers, 

 sportsmen, and hunters. 



It is not too much to state that in the early days of 

 the exploration of the Dark Continent tracts of 



Tsetse Flies. 



A (Glossina palpalis) bites and infects men. 

 B (Glossina morsilans) bites and infects horses. 



country known to harbour this pest (fly-belts) were 

 more securely protected by it from the inroads of the 

 explorer, than by the arrows, javelins, and spears of 

 naked savages. 



In connection with the prevalence of fly-disease or 

 " nagana " in Africa and its deadly effects on transport 



