XIV , PREFACE. 



of the animal or plant giving the form should also 

 be shewn bj the name ; as this is frequently the most 

 material,, and sometimes the only information, we are 

 able to give of the original body. 



The principle of nomenclature now assumed, 

 will, I think, properly remove from the study all 

 those names, which have been given to extraneous 

 fossils without any reference to their origin ; as 

 Nummus brattensburgensis, Bufonius, Stone Lily t 

 &c. except when these names are used in conjunc- 

 tion with legitimate appellations ; or, no longer con- 

 veying their original meaning, have become fixed 

 and appropriate designations of tribes or divisions ; 

 as is the case with the terms Glossopetra, JBufonitte, 



&C. &Cr 



On the above eight fundamental principles, I 

 conceive, the study of reliquia may be scientifically 

 conducted. 



Judging from the foregoing statement only, the 

 reader, perhaps, will object that our premises must 

 lead the student's attention wholly to the organic 

 form of reliquia, and necessarily hinder him from 

 paying a due regard to certain relations, which 

 ought to constitute a distinguished part of his study. 

 An examination of the work itself, I trust, will 



