382 Reports and Proceedings — S. Stafford and Warwick Institute. 



chiefly with the object of having a complete list of these published 

 that the present paper is written. 



The fossils have been named by Dr. Wheelton Hind, F.G.S., and 

 Dr. Arthur Vaughan, F.G.S. Both these geologists have made 

 a special study of the Lower Carboniferous Limestone, the former 

 having established the position of an important group of rocks 

 occurring at the very top of the series, and named by him the 

 " Pendleside Bocks"; while to Dr. Vaughan is due the systematic 

 grouping into definite zones of the whole of the Lower Carboniferous 

 Limestone rocks. Dr. Vaughan based his work upon a thorough 

 exploration of the fossils contained in the well-known section in 

 the Avon Gorge, near Bristol, the result being a complete chart of the 

 whole series, named the " Avonian Sequence". By means of this 

 chart any collection of fossils belonging to the Lower Carboniferous 

 may be recognized, and their particular position may be assigned in 

 that sequence. 



Dr. Vaughan, who examined the fossils found at Fair Oak, had 



referred them to the top of the Avonian fauna. The following 



is a list of the fossils determined : — 



Brachiopoda. Cephalopoda. 



Athyris planosidcata, Phil. A fragment. 



Chonetes laguessiana, de Kon. Corals 



Oh. gibbemda, M'Coy. Amplexi zaphrentis, Vaughan. 



^»\\ S ?'.< ■ i ■ to -l Millepora rhombifera, Phil. 



Ortliotetes cremstria, Phil. * J 



Productus giganteus, Martin. CRINOIDEA. 



P. lonqispinus, Sow. _., . . , 



P. punctatus, Martin. Stem-joints. 



P. semireticulatus, Martin. GASTEROPODA. 



P. hemispheric^ (senile form), Platyschisma. 



J. de Sow. J 



Reticularis lineata. Echinoidea. 



Bhipidomella michelini, Leveille. Archceocidaris urei, Fleming. 



Bh. divaricata, M'Coy. 



Seminula ambigua, Sow. Lamellibranchiata. 



Spirifer planicostatus, M'Coy. Parallelodon sp. 



Spiriferina cristata, Schlotheim. 



Sp. minima, Sow. Fish-remains. 



Schizophoria sp. Scales and teeth. 



The trial-shaft at No. 1 Fair Oak commenced in January, 1872, 

 passed through 286 feet of Bunter Sandstones and Gravels, set in an 

 excessively hard calcareous conglomerate. 



A remarkable feature in these beds was the occurrence of copper- 

 and lead-ores in considerable quantities. These ores are, the writer 

 believes, common enough in Keuper Sandstones, but are rarely met 

 with in Bunter Conglomerates. 



At a depth of 29 feet from the surface lead-ore occurred in large 

 quantities, disseminated freely among the gravel, and continued down 

 to a depth of 85 feet. At a depth of 75 feet from the surface copper- 

 ore first showed itself, quite separate from the lead. 1 Lower down 

 both ores were found mixed together in large quantities. At the base 



1 See " Copper and Lead Ores in the Bunter ", by W. Molyneux, Geol. Mag., 

 Vol. X, No. 1, 1873. 



