teed 
141 
Polyzoa, with Athyris Roiseyi and Rynchonella pleurodon. 
Passing over the Mountain Limestone, which is not exposed, 
they came to a quarry in the “ Millstone Grit,” a formation 
which is considered to define the close of that long period which 
elapsed during the deposition of the Mountain Limestone. 
Mr WertuHERED here pointed out that there are in the Forest 
of Dean a series of beds between the Mountain Limestone and 
the Millstone Grit, the lowest of which is a coarse crystalline 
rock, locally known as the “ Crease Limestone,” which is over- 
laid by a very characteristic limestone, called the “ White 
Head,” or “ Lid,” so called by the miners because it covers, or 
overlies, the “‘ Crease” limestone, in which the iron-ore mostly 
occurs, and is worked at the Edge-Hill mine. To this mine 
the party drove by a road which, passing by the Wilderness, 
the residence of Mr Cotcurster Wemyss, afforded lovely 
prospects over the Severn Valley, the wide river, and the hills 
beyond. At the mine, which is worked by the Dowlais 
Company, the party was most courteously received by the 
manager. Many of the members availed themselves of the 
opportunity to descend the shaft—200 yards deep—and pro- 
ceeded along the underground workings to the distance of 
nearly a mile. Others resorted to the residence of Mrs Gress, 
the widow of the late collector of fossils for the Geological 
survey, and made some purchases from her late husband’s 
stock. But all assembled at the appointed hour of five p.m. 
at the George Hotel, Mitcheldean, where a collation of cold 
meats awaited their arrival, whence the train at 7.12 conveyed 
the members of the party to their different destinations. 
The Third Field Meeting was held on Tuesday, 17th July. 
The place of meeting was at 
FROCESTER STATION, 
where carriages were in waiting. Some years previously the 
Club had visited Frocester, and a reference to the old Manor- 
house and the great conventual barn will be found in the 
