TRIASSIC DEPOSITS AT EMBOEOUGH. Ill 
limestone quarry, and indicates well the extremely irregular 
character of the surface of the limestone, as although some 
fifteen feet of Triassic beds are now exposed, and Mr. Barton 
says that the excavation had at one time been carried down 
six feet further, the Carboniferous limestone was not reached. 
The beds exposed here consist at the base of some twelve feet- 
of sandy limestone, or calcareous sandstone (bed h) much 
iron-stained, containing barytes and calcite in larger or 
smaller portions, together with numerous little angular 
pieces of limestone. Above are several feet of red marl 
(bed c) passing imperceptibly into surface soil. Blocks now 
lying on the surface of the ground, obtained from the lower 
beds here exposed, show much barytes in radiating masses, 
and calcite in well-formed crystals. 
A trial shaft (5) a little farther to the north-west shows a 
very irregular series. At the base on the north side of the 
pit, red ochreous marl (bed c) has been excavated, while above 
it is a band containing a great deal of barytes. On the west 
side there is a band of red clay. The upper part of the ex- 
cavation shown incladed blocks of Carboniferous limestone and 
pockets of white clay resembling china cla}^ It also shows 
masses of peroxide of iron, which Mr. Barton believed to 
contain a considerable proportion of manganese. In the 
specimens analyzed by Mr. Parsons, however, manganese 
is not present. 
Proceeding farther north, one comes to a quarry (6) with 
Djlomitic conglomerate, one of the largest excavations in the 
locality. The Carboniferons limestone forms an irregular floor 
to the quarry, and is seen in the north-east corner dipping 
at 46° E.S.E. Mr. Barton says it has been exposed by 
quarrying operations at other points in the quarry, but is 
now covered up. Most of the rock exposed in the quarry is 
typical coarse Dolomitic conglomerate (bed a) — blocks of hard 
