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ANATOMY AND PHYSIOLOGY. 



The order and uses of the ten pair of nerves are thus explained 



by a French poet : 



" On viewing nature's noble plan of things, 

 We find five senses mov'd by double strings ; 

 While every fibre aids the lively sense, 

 Ordain'd by wisest laws of Providence. 

 The first, in rank, directs oar fragrant smell ; 

 The second gives us power of seeing well ; 

 The third commands the motions of our sight, 

 To contemplate with ease the sacred light ; 

 The fourth to secret lovers gives the law; 

 The fifth keeps time in moving either jaw; 

 The sixth, by turns, pourtrays our pride or sight ; 

 The seventh asserts to melody a right ; 

 To wake the soul with feelings fit for kings ; 

 The eighth strong nerve employs a hundred springs ; 

 The ninth excites the call for daily bread, 

 The tenth sustains with grace the neck and head." 

 A front view of the Mudulla Oblongata, lateral nerves, Pons Varolii, and fifth pair of nerves 



M Medulla oblongata. A Pons Varolii. B Corpus Pyramidale. C Corpus Olivary. D 

 Spinal accessory nerve. E Par Vagum. F Glosso-Pharyngeal nerve. G Portio Dura of the 

 seventh. H Fourth Nerve. I I Anterior column of the Spinal Cord, a Ganglionic branch of 

 the fifth nerve, c Ganglion, d Motor branch of the fifth nerve. 



