NATURAL THEOLOGY. 193 



Birds, says Bonnet, have, at the lower end of 

 the windpipe, a conformation like the reed of a 

 hautboy, for the modulation of their notes. A 

 tuneful bird is a ventriloquist. The seat of the 

 song is in the breast. 



The use of the lungs in the system has been 

 said to be obscure ; one use, however, is plain, 

 though, in some sense, external to the system, 

 and that is, the formation, in conjunction with 

 the larynx, of voice and speech. They are, to 

 animal utterance, what the bellows are to the 

 organ." ^^ 



For the sake of method, we have considered 

 animal bodies under three divisions ; their bones, 

 their muscles, and their vessels ; and we have 

 stated our observations upon these parts sepa- 

 rately. But this is to diminish the strength of 

 the argument. The wisdom of the Creator is 

 seen, not in their separate but their collective 

 action ; in their mutual subserviency and depen- 

 dence : in their contributing together to one effect 

 and one use. It has been said, that a man can- 

 not lift his hand to his head without finding 

 enough to convince him of the existence of a God. 

 And it is well said ; for he has only to reflect, 



^ The subject admits of a much more extensive application of 

 physical science ; and one division of it will be found treated in 

 {he Appendix. 



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