and  other  authorities,  respecting  the  habits,  customs,  and  
 circumstances  of the  inhabitants  of central  Africa;  which  
 would have  added  to  the  other  incontestible  evidences  of  
 the  genuineness  and  accuracy  of  his  relations.  But  the  
 detail  will  have  been  already  anticipated  by  most  of  
 Adams’s  readers,  and would,  we  hope, be  superfluous  to  
 all.  We  shall  therefore  conclude,  by noticing  only  two  
 important  circumstances,  respectively  propitious  and  adverse  
 to  the  progress  of discovery  and  civilization, which  
 the  present  Narrative  decidedly  confirms;  viz.  the  mild  
 and  tractable  natures  of the  Pagan Negroes  of Soudan, and  
 their friendly deportment towards strangers,  on the one hand,  
 —and, on the other, the  extended  and baneful range  of  that  
 great original feature of African society—Slavery.