26 
(as we have in Germany) of the Triassic epoch. This 
formation is of great economic importance from the 
quantities of salt and gypsum which are obtained from 
it. In England it attains a thickness of 4,500 feet, 
though not reaching that amount probably in Warwick- 
shire.* The lower Keuper is of limited extent, and, like 
the upper, consists of beds of soft and hard, more or less 
micaceous sandstone, rather different in lithological struc- 
ture, and it is thus by its inferior position readily dis- 
tinguished from the upper sandstone, and some parts 
form a good building stone. The town of Warwick is 
built upon it, and sections may be seen at Coten End, 
Guy’s Cliff, Myton, and Cubbington, north of Leamington, 
and towards Leek Wootton. Part of Leamington stands 
upon it, and it is exposed in an old quarry at the North- 
Western Railway Station. It may also be traced north- 
wards from that town to near Nuneaton, bounded on the 
east by the Red Marl and on the west by the Permian. 
It then follows the latter formation northwards from 
Berkeswell to Maxstoke along a line of fault, and reap- 
pears north of Birmingham and near Sutton Coldfield. 
At Marston Jabet the lower Keuper sandstone may be 
seen resting unconformably on the inclined shales of the 
coal measures. On the east side of Warwick it is ter- 
minated by a north and south fault. The lower Keuper 
is chiefly remarkable for the interesting and valuable 
fossils which have been obtained from it, though at rare 
intervals, during the last thirty years, a fine and unique 
collection, the most perfect in the kingdom, being in the 
Warwick Museum. ‘They consist of remains, various 
bones, jaws and teeth of species of Labyrinthodon, a 
* About 800 feet is the estimate given for the Trias in Warwickshire, and 3,000 or 
upwards in Shropshire and Cheshire, where it reaches its maximum vertical thick- 
ness according to my friend, Professor Hull, 
