FORMATION OF THE SOCIETY : UNPUBLISHED RECORDS. 23 
Calder at Newmarket, and taking a N.W. course to Rhodes Green, 
Rothwell, terminated at the Victoria pit on Rothwell Haigh. Tliis 
section represented the rise of the Xewmarket or Haigh Moor coal 
to the northward, until it appears at the surface in the escarpment of 
the hill south of Rothwell. The latter village stands upon the 
Middleton and Rothwell Haigh great quarry-stone, which, rising 
northward, also forms the upper stratum of the Victoria pit, where 
the Middleton coal is nearly 170 yards deep. The section clearly 
showed that the Rothwell Haigli measures dip under, and lie beneath 
the Newmarket measures. It follows, therefore, that wheresoever 
the Haigh Moor or Lofthouse coal exists, the Rothwell Haigh or 
Middleton coal also exists at a depth probably of 180 yards lower 
down. He further contended, that without going into minute detail, 
but merely by referring to the geological map of Yorkshire, the non- 
identity of these two coal beds would be apparent. Ardsley, Loft- 
house-gate, and Newmarket stand upon what Dr. Smith calls the 
Woolley Edge Rock formation. Middleton, Thorp, and Rothwell 
Haigh stand upon a deeper formation, viz. the Bradgate. The Haigh 
Moor coal forms the base of the Woolley Edge Rock, while the 
Middleton coal lies nearly at the bottom of the Bradgate Rock ; so 
that to identify the two heads of coal would be to identify also these 
two rock formations ; an assimilation altogether at variance with the 
geographical and geological structure of the district. Finally, Mr. 
Morton stated that the fossils of the Haigh Moor measures are different 
from those of the Middleton measures. The former abound in ferns and 
stigmaria ; the latter are characterised by a profusion of calamites, 
mussel shells, and fishes. The stigmaria, which are so plentiful in 
the former, are rarely if ever found in the latter ; while the mussel 
binds, and the fish shales of the Middleton and Rothwell Haigh 
Collieries are never found in sinking to the Haigh Moor coal. 
Mr. Embleton remarked, that after the clear manner in which 
the non-identity of the Lofthouse coal and the Middleton Main coal 
had been established, he would only make one observation on the 
section No. I., exhibited by Mr. Morton. Mr. Morton alluded to the 
probability of the existence of a throw or dyke between Middleton 
and Ardsley, this he (Mr. E.) could assure the meeting was actually 
