il] SOME OTHER NATURAL SCIENCES. 81 



The immense quantities of game in some parts almost 

 baffle description; especially on the banks of the Zambesi, 

 between Linyanti and Tete. 



Our traveller observed that the farther he went north, the 

 smaller the large game, such as elephants, become. Males in 

 the south being 12 feet high at the withers, and those above 

 20° north latitude being 9 feet l . 



He was much struck with the instinct shewn by different 

 wild animals in adapting themselves to new circumstances of 

 security or danger, evincing an intelligence almost amounting 

 to the cool calculations of reason. For instance, they soon 

 found out the difference between the shorter range of bow- 

 shot and the longer range of gun-shot, after guns had been a 

 little while introduced. 



Some other Natural Sciences. 

 " For every creature of God is good." — r Tim. iv. 4. 



Topics are here enlarged on according to their bearing 

 on Dr Livingstone's discoveries, and not with respect to their 

 own intrinsic merits. 



In connexion with this sublime science our 

 traveller has rendered invaluable services by de- 

 termining the latitudes and longitudes of ninety places. These 

 are all given in the Table at pp. 684 — 687, Travels. He 

 determines the altitudes of fifteen places in the same Table. 



This is a hint which may well be taken by missionaries 

 and others opening up little known or unexplored regions. 

 entomology Tbia science is particularized simply to intro- 



The duce this curious insect, of which a brief account 



tsetse. mugt be giyen> 



There are drawings of it on the title-page, and at p. 571 , 

 as well as a description at pp. 81, 82, Travels. Its existence is 

 1 Ibid. pp. 564, 5. 



