222 THE LAKE REGIONS OF CENTRAL AFRICA. 



not disposed to risk the consequences of taking an extra 

 twelve months. No course, therefore, remained but to 

 regain the coast. We did not, however, give up hopes 

 of making our return useful to geography, by tracing 

 the course of the Ewaha or Rufiji River, and of visit- 

 ing the coast between the Usagara Mountains and 

 Kilwa, an unknown line not likely to attract future 

 travellers. 



