TRANSLATIONS AND NOTICES 



OF 



GEOLOGICAL MEMOIRS. 



Index pal^ontologicus, orReview of all knownFossil Organisms, 

 prepared ivith the Co-operation of Prof. H. R. Goppert and 

 H. V. Meyer, hy Dr. H. G. Bronn {oder Uehersicht der his 

 jezt bekannten fossilen OrganismeUy unter Mitwirkung der 

 Herren Prof. H. R. Goppert iind H. v. Meyer bearbeitet, von 

 Dr. H. G. Bronn). 



This work forms the third volume of *The History of Nature' by 

 Professor Bronn, the well-known author of the ' Lethsea geogno- 

 stica ' and other works on fossil geology. It is divided into two 

 parts, of which one, under the title of " Nomenclator palseonto- 

 logicus," gives a list of all known names of fossils in alphabetical 

 order. The other part, entitled " Enumerator palaeontologicus," 

 contains the species classed in systematic order, with indications of 

 the formations in which they occur, thus forming a *' history of the 

 appearance of the individual organic beings on the surface of the 

 globe." The preparation of such a work, as the author remarks, is 

 subject to many difficulties, especially in the determination and com- 

 parison of the organic remains described by different persons in dif- 

 ferent places, and in the synchronizing and grouping of the various 

 geological deposits in which they occur. The very partial and 

 limited investigation of the different formations of the earth's crust 

 compared to their entire extent, is also a great obstacle to rendering 

 such a work perfect. 



The second part of the work, or the systematic arrangement, 

 occupies a volume of 726 pages. Each genus is classed in its proper 

 place under the great natural-historical divisions of the animal and 

 vegetable kingdoms. The specific names follow, but seldom syste- 

 matically arranged, being more generally classed according to the 

 order of the formations in which they occur, beginning with the 

 more ancient. The following may be considered as the general plan 

 of the work. Each page is divided into eight columns, of which the 

 first contains the names of the families, genera and species, distin- 

 guished by difference of type, the higher divisions being repeated at 

 the top of each page. The second column marks the region of the 

 globe in which the species occurs, the five quarters being designated 



VOL. V. PART II. F 



