212 CARBONIFEROUS VOLCANIC ROCKS OF SOMERSET' 
found the lava, though not in situ, at the western exposure, 
but apparently did not meet with it at the eastern exposure. 
The tuffs are described by them as “ consisting of alterna- 
tions of finer and coarser green and red volcanic dust and 
lapilli, with partings of limestone. They abound in the usual 
highly vesicular basic pumice. They are generally cal- 
careous, and pass laterally and vertically into ashy lime- 
stone. The limestone bands in both are full of volcanic 
sediment, especialh^ of lapilli of the green pumice. Some 
of these are partially oolitic, the oolitic grains being scat- 
tered through the ashy material.” 
(5) Uphill. 
The Uphill exposure is reached by following the road 
from Uphill village to Bleadon and Uphill station. There 
is a toll gate visible when the station is in view. The 
igneous rock occurs in an old quarry in the railway cutting, 
and may be approached by climbing down into the cutting 
about 50 yards before reaching the toll gate. 
The relations of the amygdaloidal basalt or dolerite 
to the limestone are not well seen, and the ground is much 
faulted. There is, in our opinion, nothing to enable us to 
decide whether we have here a sill or a contemporaneous 
lava-flow, and we have not been able to find in the lime- 
stones, either above or below, any traces of ash or lapilli. 
The igneous rock occupies just the same position in the 
stratigraphical series that the volcanic rocks occupy in 
other localities. 
(6) Near Cadbury Camp. 
Beyond the occurrence of fragments of “ trap ” thrown 
out from rabbit-burrows in Wood Lane, at the angle be- 
tween Round Wood and St. John’s Wood, we have found 
no indication of the exposures marked in Sanders’s map. 
There is nothing to sliow whether or not the trap is con- 
temporaneous. 
