^1 



XOTICE TO THE EEADEE 



Tke following translation has been executed from the second 



V German edition ; those who may compare it with the original will 



^ notice that the latter half of § 24 is entirely altered, while an 



important addition has been made to § 481. These changes 



>^ were introduced by the author's desire. The second volume 



' •"•^ 



"^ is in the hands of the printer. 

 ,V 

 ^ The translator has to thank Mr. Nettleship for readnig 



^ fhv 



Q 



PQ 



through the first twenty sheets as they were passing through 

 the press. 



King's College, London, 

 ^0 Juhj, 1872. 



3 





^ 

 ^ 



593153 

 r>l„C-c-.Ve 



