344 Mr. Brockbank and Mr. C. E. de Range on 



Edinburgh^ Phil. Mag., 3rd Series, Vol. ix. p.p. 241-348. 



1836) on the Limestones found in the vicinity of Manchester, 



and at the first meeting of the British Association in the 



county of Lancaster, held at Liverpool in September, 



1837 {Report Brit. Assoc, 1837, p. 81), a paper was read 



"On the Coal Measures of West Lancashire," by Mr. (now 



Professor) W. C. Williamson, F.R.S., in which he describes 



the Fossil Fish of the Lancashire Coalfield, and refers 



to those occurring in the Ardwick Limestones, the Bradford 



Coalfield, and the Black and White Mine at Peel, 



Palcenoniscits, Holoptychius, and other genera being described. 



It is worthy of note, that the late Sir Philip Egerton, F.R.S., 



and Dr. Dalton, F.R.S., were Vice-Presidents of this 



meeting. In 1837, Sir Roderick Murchison made a careful 



•examination of the Shropshire Upper Coal Measures 



Limestone, which he found charged there and in Manchester 



with a shell he named Spirorbis {MicrochoJtchus) Carbonaria, 



which has since proved to be an annelid. In the 



Shrewsbury and Coalbrook Dale Coalfields he describes 



the limestone as varying from 2 to 9 feet, and occurring 



associated with mottled clays, greenish grits, and a 



-calcareous breccia, resembling volcanic ashes. 



In 1839,, Mr. Binney adopted Elias Hall's term of "the 

 Manchester Coalfield," for the Upper Coal Measures, and 

 described the fishes of what he called the Coal Measures 

 freshwater limestones of Ardwick and Uffington, and Lee- 

 botwood, in Shropshire, and refers to Sir Roderick Mur- 

 chison's discovery of the Spirorbis, the Microconchus 

 Carbonaria in these beds ; and describes his own investiga- 

 tion of the fish remains occurring in the limestones, which 

 he considered belong to the genera : — Ctenoptychius, Mega- 

 lichthys, Diplopterus, PalcBoniscus, Platysomus, Diplodus, and 

 large long rays, resembling those found at Burdie House in 

 Scotland. The thickness of these strata (River Medlock), 

 he states, " from the turn in the river to the Beswick Toll 



