1862.] 



MOERIS AND ROBERTS CARBONIFEROUS LIMESTONE. 



97 



and lower parts of the limestone series are more fossiliferous than 

 the upper ; and these indicate a deep-sea condition, by the abundance 



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of Brachiopodous shells, and the absence of large LameUibranchiate 

 bivalves. The most important physical feature of the series are the 

 bands of oolitic limestone, which indicate by their structure similar 

 agencies of formation to those which have produced like beds in the 



VOL. XVIII. PART I. TJ 



