90 NATURAL HIST011T OF 



occipito-frontalis muscle was found in the black orang, 

 while it was distinctly seen in the red species by Messrs 

 Owen and Yarrel. In the same animal, three muscles 

 were found to supply the place of the pectoralis major ; 

 and the peculiar muscle called the levator claviculce 

 is found in both. In the black orang the size of the 

 olfactory nerve is great, and the surface of the turbi- 

 nated bones extensive, which would lead us to infer 

 that the sense of smelling was powerful, and of course 

 of necessary use in its economy. 



The larynx of these animals present some curious 

 peculiarities. The best account, perhaps, is that given 

 by Camper of the red orang. After examining the 

 tongue, that anatomist continues, " pursuing my dis. 

 section, I discovered a large sack on the right side, run 

 ing over the clavicular bones, and another on the left 

 side, but visibly smaller. The large sack tore a little 

 on account of its being tender, by having lain so long 

 in spirits. I inflated it through the opening, which I 

 continued quickly, as I perceived that the air went off 

 betwixt the tongue bone and the thyroideus cartilage. 

 I then followed up the rent with a pair of scissors, 

 and cut open the sack, by which means I discovered a 

 transverse split. There was now no doubt but that 

 the left sack had a similar orifice. 



" In pursuance of it, I took away the whole soft 

 palate and oesophagus as far as below the speaking 

 organs. The soft palate is the same as in most quad- 

 rupeds, with this difference, nevertheless, that the 



