55 



of species and varieties, for those wider views 

 and inquiries which constitute the true value of 

 these studies. 



It only remains to add, that, in conformity to 

 these remarks, no change of nomenclature is 

 made in the following pages. The common 

 terms are used ; although some of them have 

 been more accurately limited, where it appeared 

 necessary, to avoid confusion ; and others have, 

 in the same manner, been occasionally gene- 

 ralized ; but always conformably to received ana- 

 logy, or to antient practices, and for purposes of 

 obvious utility. Wherever this has been done, 

 the reasons are submitted to the readers consi- 

 deration. In the various prefatory remarks which 

 accompany the synopsis, reasons will also be 

 found for the very few changes or novelties of 

 this nature which may be discovered. 



