216 
beds are met with, as far as I could estimate, at 70 feet above 
the sea, and at Lassington, 23 miles distant from the boring, 
the Rheetic beds occur. 
These several places and heights shew a general concur- 
rence in the position of the beds. 
My impression certainly was that—considering as the 
boring was less than two miles from Highnam Green, and 
that north and south of Gloucester the Rhetic beds were 
brought to the surface, and that the Bucklandi beds were in the 
cutting of the South Wales Railway, just after leaving High- 
nam; and that I had, at a considerable elevation at Maisemore, 
found Lima gigantea—I thought the upheaval which brought 
the new Red Sandstone against the Lias, exposing the Rhetics, 
would probably have affected the bottom beds of the Lias at 
Gloucester, and brought them nearer the surface. 
Lately, in making the railway to Ledbury, at Over, near 
Gloucester, in the cutting there, slightly exceeding half a mile 
from the boring, Ammonites stellaris has been found; and 
about 12 miles further, at Lassington, the Planorbis beds are 
exposed, and close to is the White Lias, containing Monotis 
decussata, forced up at an acute angle—the paper shales of 
Westbury being absent—and resting on the Tea-Green Mars. 
Ammonites stellaris was found some years since, in forming 
a wharf in the Gloucester and Berkeley Canal, at Hempsted, 
at a depth of about eight feet below the level of the water. 
There is a difference in level at Over compared with the 
Canal of 25 feet, which is about the normal dip of the Lias 
and Oolite, and therefore this area was outside the upheaval 
referred to; but it is evident that its effect was considerable at 
Lassington, as the Rhetic beds occur there, and at an eleva- 
tion of 26 feet higher than at Over. 
The result of the boring, although very unsatisfactory to 
my friends Messrs Roserrsoy, is extremely interesting and 
instructive geologically. 
It clearly shews—from the depth of 350} feet having been 
reached—that the Lower Lias is most likely at this point 400 
feet thick. 
