he made some appropriate remarks upon the structure, which as 

 an early Preaching- Cross is said to be unique. 



The old Church with its massive tower next engaged attention, 

 but as it contained nothing of particular interest the party 

 proceeded to Frampton Cotterell, to examine the great Hoematite 

 beds, worked there by a new comj)any. The shaft of the mine 

 pierced in a line of fault, is in depth 80 yards, and yields a very 

 large quantity of very rich iron ore containing from 60 to 70 

 per cent of iron, which is obtained from beds of Pennant 

 Sandstone, one of the members of the great carboniferous series. 

 Much steam power is needed to free the mine from the large 

 quantity of water that percolates by the lines of fault, and a 

 powerful engine with four large boilers is constantly in operation 

 to keep the water in subjection. 



The country to the north of Prampton Cotterell presents 

 several lines of fault. At the West, Frampton Cotterell ; in the 

 middle, Eam Hill, Iron Acton, Eangeworthy ; and at the East, 

 the May's Hill faults. All these lines of dislocation contain 

 extensive deposits of brown hcematite or hydrated peroxide of 

 iron, similar to that obtained in such abundance at Frampton 

 Cotterell. 



On leaving the iron-mine, the party proceeded to the railway 

 cutting at Tytherington, to examine a veiy fine section of the 

 carboniferous limestone and dolomitic conglomerate. The beds 

 of limestone present numerous distortions, and its strata dip 

 away at a considerable angle, on which the dolomitic beds repose 

 in a nearly horizontal position. This cutting presents very fine 

 examples of the uncomformable position of these two rocks, 

 which tell a tale of long-lapsed time between the deposition and 

 up-heaval of the limestone and its subsequent covering over by 

 the dolomitic deposit. At the Thornbury side of the tunnel the 

 conglomerate character of the deposit is very well shewn. This 

 is a most interesting section, and the club learnt with pleasure 

 that Mr. Macdonald is preparing a diagram, worked to scale 

 which I hope will find a place in our published transactions. 



After leaving the tunnel the view is very fine ; the Severn 

 opens out before the observer, and the beautiful tower of 

 Thornbury Church is a fine feature in the landscape. 



