108 
lias and red sandstone. 
we find specimens of the cquisetum of a 
height now only attained in the marshes oi 
equatorial regions. 
The columnar equisetam is found vertical 
at Whitby, and in a position which evinces 
that it grew where we now find its re¬ 
mains. 
Several species of ferns have been dis¬ 
covered in this deposit at Hor, in Sweden, 
and near Basle, attesting the existence of 
dry land in those places during the Liassicji 
era. 
5. NetvRed Sandstone .—Below the Oolite, 
the wayfarer will encounter a series of marls 
and variegated sandstone, including the 
great salt deposits, and comprising many 
members more fully developed on the Con¬ 
tinent than in England. 
Some cypress-like trees, gigantic calam- 
ites, several ferns, all differing specifically 
from those on either side, are enumerated 
from these rocks. The absolute want of 
identity between the vegetables of different 
series of rocks is well ascertained, and pre¬ 
pares us to find their total unconformity 
with present foliage. The boundless variety 
3 
