Vol. 67.] FAUNAE HORIZONS IN THE BRISTOL COALFIELD. 323 



as to the particular colliery from which material came is regrettable, 

 because the fossils found are well-marked species and well preserved; 

 they include forms referable to Anthracomya ivilliamsoni, A. lanceo- 

 lata, A. minima, and A. phillipsi. 



(7) Ludlows and Middle Pits. 



These collieries, originally sunk to the Radstock Series, have 

 since been deepened to the Lower or Farrington Series, and now 

 pass through the following seams : — 



Great Seam. 

 Top Little. 

 First, or ! Middle. 



{ 



Radstock Series. J Slyvn 



J Under Little. 

 1, Bull Seam. 



( No. 1 or Eock Vein. 

 No. 2 Vein. 

 Q , No. 3 Vein. 



Second or _ No . 4 Vein. 



Farnngton Series. j ^ - or gmith>g Ooal 



I No. 6 or Bottom Vein. 



^ No. 7 Vein, proved, but not yet worked. 



A large quantity of shale described b} r the miners as coming 

 from the ' deep/ in all probability came from Nos. 1, 5, & 6 Veins 

 of the Second or Farrington Series. The shale yielded Anthracomya 

 lanceolata and A. minima. 



It is quite within the bounds of possibility that the fossils found 

 in the 'mixed' shales of Tyning Batch came from one or more of 

 these horizons, although we must not lose sight of the fact that they 

 might have come partly from Tyning or Wells Way Pits, where the 

 Kadstock Series has been or is now being worked. 



(8) Foxcote and Lower Writhlington Collieries. 



These collieries are opened up in the Second or Farrington Series 

 of coals. The highest workable seam is that known as the ' Eock ' 

 or ' Badger'" Vein, which has been worked at Braysdown Colliery, 

 Foxcote, Lower Writhlington, and Middle and Ludlows Pits at 

 Radstock. It is worked at the Greyfield Colliery, Clutton, at the 

 present time, and also at the first five of the above mentioned 

 collieries. The ' Badger ' or ' Rock ' Yein occurs at a depth of 

 1131 feet in the Lower Writhlington pit, and at 1059 feet in that 

 of Foxcote. About 300 feet lower down occurs another seam, 

 known as the 'Smith' Seam. From the roof of the Rock or 

 Badger Vein at Radstock, I was enabled, by the kindness of 

 Mr. G. E. J. McMurtrie, to obtain a quantity of shale which on 

 examination yielded examples of Anthracomya phillipsi and 

 A. lanceolata. The specimens of A. 'phillipsi were few in number, 

 while A. lanceolata proved fairly abundant. 



The shale is of a dark greyish-blue colour, breaks irregularly, and 

 contains the shells in an uncrushed condition. 



