W. Pengelly on the Bed Sandstones, 
spread gypsiferous marls of other parts of Britain ? It would be 
easy, but perhaps scarcely profitable at present, to speculate on 
these questions. They lie in my path, and hence I call attention 
to them. 
The exceptional colour in the Trias, from Weston-Mouth to its 
disappearance near Beer Head, is rather blue than green ; but the 
marl itself, like that which forms so large a constituent in the cliiBF 
section from Exmouth eastward, may be described, on the whole, 
as being of a dull chocolate red, and having a tendency to break 
into small somewhat angular ellipsoids. East of Branscombe- 
Mouth the Trias occupies a less and less portion of the cUff, and 
ultimately disappears beneath the cretaceous beds somewhat less 
than a mile from the valley just named. The termination of the 
wedge, however, is concealed by a mass of debris. 
At the White Cliff, nearly midway between the villages of 
Beer and Seat on, the red rocks are seen ascending with the over- 
lying cretaceous beds, which conceal them for something more 
than a mile when measured in a straight line from the point 
where they plunge below the base of the cliff. The junction of 
the two formations is distinctly seen at several points ; it is well- 
defined, and apparently, the more modern formation conformably 
overlies the more ancient, each dipping at about 5^ towards S. 56^ 
W. (mag). There does not appear to be any evidence to prove that 
the disappearance of the Trias west of Beer Head or its re-appear- 
ance east of it is due to a fault. It would rather seem that the 
beds dip, eastward in the first case, and westward in the second, 
towards a synclinal axis ; in fact, that they form a trough or basin 
which the cretaceous strata occupy. Soon after their emergence 
at White Cliff, they curve over, pass a low, flat, anticlinal axis, 
recover their wonted gentle easterly inclination, and dip towards 
Seaton. The Cretaceous beds terminate west of the axis ; where 
they crop out they form the highest ground on the coast between 
Beer and Seaton. 
At Seaton, about three-fourths of a mile eastward, the Trias is 
