TRAVELS IN BRAZIL.^ 



to all that might fall within the sphere of our ob-^ 

 servations and researches, and to provide us witW 

 those instruments, the judicious employment of 

 which, during the course of the expedition, might' 

 be productive of results particularly interesting to> 

 science^^ '^'^'^^"^ ^*^Hrh^^q*/*^ -Mt '^n I'^o "ir?i+-ffV ^dl Toi 

 In cdhsequence of these commands, the travellei'&' 

 were recommended to direct their chief attention' 

 towards enriching the two departments of zoology^ 

 and botany, ^nd at the same time to keep in view^ 

 the other branches of science, as far as time and 

 circumstances should allow. Di'iSpix, as zoologist,^ 

 engaged to make the whole animal kingdom the^ 

 . object of his observations and labours. With this 

 view he had to observe the inhabitants, whether 

 aborigines or colonists ; to remark the different^ 

 effects of climate upon them ; their physical and^ 

 intellectual powers, &c. : the external and internal 

 conformation of all the indigenous animals ; their 

 habits and instincts, and the geographical limits in 

 which they are found; their migrations: and,' 

 lastly, to investigate the fossil remains of animals,' 

 those most authentic records of the past, and most 

 convincing proofs of the gradual development of 

 the, creation. Dr. Martins, as botanist, undertook^ 

 to explorej in its wh(i)le extent, the vegetable Mng-^ 

 dom of the tropics. Besides the study of th6 

 botanical families peculiar to the country, he was^ 

 particularly to examine those forms which, by their< 

 affinity or identity with those of other countries/ 



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