PREFACE. 21 



i ____ .^ _ 



j ence or systematic instruction. Nevertheless, the publishers 

 i have caused a copious index to be made for the work : the 

 j same facility of reference is afforded as if the usual order 

 ! were observed in the arrangement and classification of the 

 j subjects. 



DION. LARDNER. 



MAY, 1846. 



