108 Observations Concerning Fossil Organic Remains. 
Desiderata in Geology. 
That some geologist will prepare with care, a systematic 
description, by means of which we can determine the gene- 
a and species to which fossil remains, both vegetable and 
animal, belong. The materials for such a work exist; but 
are distributed through a great variety of works; as those of 
Cuvier and Brongniart, of Parkinson, of Sternberg, of 
Steinhauer, of Schlottheim and others. As far as I am ac- 
e diluvial deposits, to those of the alluvion: he would be 
in a condi ondition to demonstrate whether these types succeed 
each other in the order which has been adopted in the sYS- 
