282 De Verneuil. 
science. His study had exclusively for its base the species 
which he examined in local collections or those which he him- 
self gathered from the deposits. He established the fact that 
in countries so remote the first appearance of life was very 
similar in forms, and that the same types were developed suc- 
cessively and in a parallel manner through all the series of 
Paleozoic beds; that there is on both sides of the ocean a 
the other, of bringing back to Europe the results of Ameri- 
There is, however, another enterprise which bears still higher 
his his in- 
. 
TreaZ 
instructions. The geological map of Spain, and the memos 
published after these boca excursions, among others 
which is rendered signal by the discovery of the Primordial 
fauna, did not interest Spain alone, where they incited others to 
labor, but the whole scientific world. 
_It is greatly to be regretted that the author of so many Pre 
cious observations did not find time to put them in order and 
work them out as a whole, as he did in Russia. 
