96 Proceedings of the Royal Physical Society. 



particular may be noticed, which is, that a greater number 

 of genera and species of small dimensions are often found 

 clustered together than in any other locality the author had 

 visited. Thus in a small specimen (3|- inches by 3) exhibited 

 were to be counted no less than three genera and eight dis- 

 tinct species of plants. Of ferns, the genus Pecopteris seemed 

 to be the most plentiful ; the Neuropteris next ; Sphenopteris 

 the most rare. Of the last, Mr Grieve only obtained one 

 specimen, Sphenopteris midtifida of Lindley and Hutton, and 

 which, so far as he knew, had not been recorded as having 

 been found in Scotland. 



It was mentioned that there is nearly the entire absence 

 of the carboniferous mollusca and of corals in the Eadstock 

 coalfield, and which are so abundant in other parts, more 

 particularly in the vicinity of Bristol. It was also pointed 

 out that this ground might be almost called classic in its 

 way, for here, at Camerton, Eadstock, Paulton, and some 

 other places in the neighbourhood, M. Adolphe Brogniart got 

 many of the specimens which are figured in his admirable 

 work, the " Histoire des Yegetaux Fossiles ; " and here also 

 Messrs Lindley and Hutton got some specimens, also referred 

 to in their similar work. 



Mr Grieve concluded his paper by describing many fine 

 specimens on the table, and by giving an enumeration of 

 fossil plants collected by him at Eadstock, in all thirty-two 



For many of the measurements given, Mr Grieve acknow- 

 ledged his obligations to the papers of the able resident 

 mining engineers, Messrs Greenwell & M'Murtrie of Eadstock. 



