MR. A. CAESON ON" THE EISE A>^D FALL OE LAKE TA2fGANTIKA. 403 



Tanganyika an example of a great lake having its outlet practically 

 closed for many years by a natural process of clamming. 



The writer then mentions the common occurrence of earthquakes 

 in the district, and particularly the slight shocks that took placp. in 

 October 1887 in the Island of Kavala (only a few miles from the 

 mouth of the Lukuga). These shocks were also felt at Ujiji on 

 the opposite shore. 



DiSCFSSIOlS'. 



The Chaiemast (Prof. Judd) referred to the rapid advance of our 

 knowledge of Central Africa in recent years. In this paper we 

 had the evidence of an eye-witness as to curious processes which 

 were going on in Lake Tanganyika. The causes which the Author 

 considered competent to produce the described changes were of 

 interest in themselves, whether or not they were actually sufficient 

 to produce those changes. 



Mr. E. T. Newton- called attention to the remarks on this subject 

 made by Major von Wissmann in his recently published work, 

 'Through Equatorial Africa,' 1891 (English edition, p. 255). 



Prof. Hull and Dr. Hicks also spoke. 



