320 ME. HERBERT BOLTON ON [Aug. I9II, 



and, while driving operations werle being carried on in connexion 

 with the latter, a small collection of fossils was obtained from the 

 shales thrown out upon the waste-heap. I have not been able to 

 localize the horizon. 



Attention was also paid to the shales in the vicinity of the 

 Bedminster Great Yein at the South Liberty Colliery, in the hope 

 of finding a fossiliferous shale over the roof of this seam. 



(2) Easton Colliery. 



This colliery lies to the north and east of that of South Liberty, 

 and has been sunk in Lower Coal-Measures, which here extend 

 about 700 feet above the Bedminster Great Yein. Prom the 

 spoil-heap of the colliery were obtained examples of Carbonicola 

 aquilina, Anthracomya jpJiillipsi, Naiadites carinata, and Lingula 

 mytiloides. The black shale containing the two first-mentioned 

 species was recognized by Mr. Staple, of Easton Colliery, as 

 forming the roof of the Easton Great Yein, a seam which Godwin- 

 Austen correlated with the Bedminster Great Yein. 



Lingula mytiloides and Naiadites carinata occurred in a thick bed 

 of black micaceous shale, the first-named species in great numbers. 

 The shale was indeed a typical "Lingula Shale.' So far as I have 

 been able to locate this deposit, it lies somewhere in the vicinity of 

 what is known as the 'Eive Coals' Seam, and at about 80 to 

 100 feet above the Easton Great Yein. The presence of numerous 

 coprolites was noted, but no trace was found of fish-remains. 



(3) Hanham Colliery. 



This colliery lies on the eastern outskirts of Bristol, the shaft 

 passing through a considerable thickness of the Pennant Grit into 

 the upper portion of the Lower Coal-Measures. Prom the spoil- 

 heap was obtained a black shale packed with hundreds of Lingula 

 mytiloides. A fragment of the dentary of Megaliclithys jpygmceus 

 was also found, and a large goniatite which broke up in course of 

 extraction. 



The Lingula Shale of this colliery is identical in all its features 

 with that from Easton, but I have no information respecting the 

 horizon at which it occurs. It is quite within the range of proba- 

 bility that the horizon may be higher in the series. Purther 

 information from this colliery is much wanted. 



(4) Speedwell Deep Colliery, Kingswood. 



This colliery lies within the boundaries of the city of Bristol as 

 now defined, and has been sunk through the Kingswood Series of 

 Lower Coal-Measures. One of the first seams passed through is 

 the Doxall Seam, below which come the Lyalong, Old Road, Trough, 

 Hole or Hard, Pive Coals, Thurfer, Great, Giller's Inn, and Little 

 Toad Seams. 



Prom the spoil-heap of Speedwell Deep Colliery were obtained 

 a few examples of Anthracomya minima, A. lanceolata, and 



