46 Ti'ansactions of the 



THIRD TERM, 1872. 



MEETING, Septembkk 27, 1872. 

 The President in the Chaii\ 



The first meeting for the term was held in the Physical Lecture- 

 room on Friday, September 27. Forty-five members were present. 



The President acknowledged the following donations : — Head 

 of a Teleosaurus from Upper Lias, near Whitby, by R. Mont- 

 gomery ; Otter Skin, by A. Cole-Hamilton ; Iron Ore from the 

 Pyrenees, by Taylor; Little Stint, by M. S. C. Pdchards, Esq., 

 of Appledore, North Devon ; Coal Measure Plants from Llantwit 

 Vadre, Glamorganshire, by Lukis ; Silicified Wood from Barba- 

 does and Silicified Corals, by J. A. Gibbons ; Iron Ore and 

 Fossils from new iron mine, Clifton, by J. G. Grenfell, Esq. 



The President announced that the Committee had elected Dr 

 Tilden an Honorary Member. 



The President then read a paper on an 'Iron Mine recently 

 opened .in the Royal York Crescent, Clifton ; ' and exhibited a 

 large number of specimens of the ore and some fossils of great 

 interest. 



An iron mine has recently been opened in the Eoyal Crescent, 

 in the centre of Clifton, which promises to be of some importance. 

 Mr Lewis came across the deposit in cutting a drain. It is 

 singular that it should not have been discovered before, because 

 large sums of money have been spent in searching for ore along 

 these hills; and this deposit is so near the surface that the cistern 

 of a house may now be seen actually sunk into it. The mine is 

 sunk in the millstone grit which lies between the Coal Measures 

 and the Carboniferous Limestone, and is composed of coarse sand- 

 stone and conglomerate, with occasional beds of shale. 



These beds dip, 10° W., at an angle of 48°; their upturned 

 edges form a very uneven surface, which is overlaid by horizontal 

 beds, probably of Triassic age, varying from 5 to 12 feet in thick- 

 ness, composed of a debris of clay with fragments of hgematite, 

 and containing a bed of nearly solid haematite in the lower part. 

 Above these, again, there is a thin coating of recent surface soil. 

 About 80 yards, a little to the south-west of this mine, another 



