PREFACE. IX 



those organs, and to shew how those changes are 

 effected. 



Such are the nature and objects of the work 

 which I now present to the public. Whether I 

 have succeeded in achieving those objects, or not, 

 must be left to the decision of the reader. 



E. J. 



Blackfriars Road, 

 Dec. 15, 1835. 



