280 Scientific Intelligence. 
2, those from the investigation of the ketone atone of the arctic 
regions, “tending both of them to elucidate in a 
my 
in biological history, the continuity of life through successive 
geological periods.” After briefly rab where the principal 
data are 2 SORE Mr. Bentham contin 
be useless for me here to aon ce, after Dr. Carpenter 
me Prof. "Verrill, the outlines of the revolution which these marine 
discoveries have caused in the previously conceived theories, both 
as to the geographical distribution of marine animals, and the rela- 
tive influences upon it of temperature and depth and as = the 
to consider the geological conclusions to be drawn from them. 
object is more especially to point out how these respective dips 
into the early history of marine animals and of terrestrial forests 
sities of organic life; and it would be still further psi my province 
y 
by side, without requiring - latter any general catastrophe 
that should ee the form 
* There a time, as we i seh when our chalk-cliffs, now high 
and dry, were my ae formed at the bottom of the sea by the e gradual 
growth and decay of Globigerine and the animals that fed on them 
ground into an element where these animals could no longer live 
e eR 
nin possession of some genial locality, where they have con- 
tinued from generation to generation, and still continue, with 
Globigerine and other animals, forming chalk at the bottom of the 
sea, unchanged in structural cha racter, and rigidly conservative in 
habits and mode of life through the vast gedlogical periods they 
have witnessed. So also there was a time when the hill-sides of 
Greenland and Spitzbergen, now envelo in never-melting ice 
its race from ce arention to generation down to the — meee H 
unchanged in character, and unmodified in its requirem 
