X PREFACE. 



as its association only in very small bands, I have 

 found reason, on further observation, to modify; but 

 with regard to its beating its breast when enraged, 

 and the savage nature of the young animals, as 

 compared with young chimpanzees, fresh observa- 

 tions have confirmed my former statements. I suc- 

 ceeded in shipping one live gorilla for London, but, 

 to my regret, it died during the passage. 



The principal object I had in view in my last 

 journey, was to make known with more accuracy 

 than I had been able to do in my former one, the 

 geographical features of the country, believing this 

 to be the first duty of a traveller in exploring new 

 regions. To enable me to do this I went through a 

 course of instruction in the use of instruments, to 

 enable me to fix positions by astronomical observa- 

 tions and compass bearings, and to ascertain the alti- 

 tudes of places. I learnt also how to compute my 

 observations, and test myself their correctness. It is 

 for others to judge of the results of my endeavours 

 in this important department of a traveller's work ; 

 I can only say that I laboured hard to make my 

 work as accurate as possible, and although I was 

 compelled, much to my sorrow, to abandon photo- 

 .graphy and meteorological observations, through the 

 loss of my apparatus and instruments, I was fortu- 

 nately able to continue astronomical observations 

 nearly to the end of my route. 



In camp at night, after my work with the sextant 

 was done, I spent the still hours in noting down the 



