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and the members were not sorry to find the good landlord of the 
Seymour Arms had fully prepared for their arrival. 
Lunch being finished, the members proceeded to a Dolomitic 
quarry, in the neighbourhood, where the Rev. H. H. Winwood 
explained the geology of the neighbourhood and said :— 
That the Vale of Wrington, watered by the river Yeo, was one 
of the richest of the many rich valleys of the Mendips. The river, 
which gushes out in a plenteous stream from Compton Martin, 
receives many tributary rills from the adjoining combes and 
valleys on either hand, and finally empties itself into the Severn 
Sea, a little south of Kingston Seymour. The strata through 
which it was now cutting its way belonged to the Triassic series, 
consisting principally in this district of red and variegated marls. 
These beds had been deposited on the upturned edges of the 
carboniferous limestone, and are about 200 feet thick on this 
side of the hills. He then proceeded to give a short account of 
the present features of hill and valley, how the strata, once 
horizontal, became upheaved and distorted, how a vast mass of 
material had been removed from the Mendips by denudation, 
both atmospheric and aqueous, and that if they asked where had 
all this gone to, he said that the quarry in which they were then 
standing gave a partial answer. The four feet of conglomerate, 
or “ pudding stone,” now being worked, consisted of the pebbles 
and débris of the old land, forming the shallower margin of the 
Triassic waters of that time, while the red and variegated marls 
were the sediments deposited farther away from the land and in 
deeper water. Mr. Etheridge, of the Geological Survey, had 
kindly lent him a section made through the valley from north to 
south, which he had the pleasure of showing them. From this 
they would see how the limestone dipped on either side towards 
the valley, making a synclinal trough on which the new red marls 
were laid down. They would see there certain patches and 
tongues of conglomerate some of which occurred in the puddle 
trench (about which Mr. Ollis, the engineer, would speak) while 
