^ol- 55-] caebonieeeous lamellibra.nchi1ta. 371 



Discussion. 



The Peesident said that he had been asked by Mr. W. Gibson 

 (who was unable to be present) to state his opinion as follows : — 



He (Mr. Gibson) was very pleased to find that the Author had 

 discovered a distinctive fossil, other than fragmentary fish-remains, 

 or smooth-valved entomostraca, in the great thickness of Upper 

 Coal-Measure strata of North Staffordshire. The occurrence and, 

 so far as yet known, the restriction of Anthracomya calcifera 

 to the limestone at the base of the grey measures conformably 

 underlying the Hed Series (Permian of the Geological Survey) is 

 an important fact, as bearing upon the age of the Red rocks. The 

 correct relegation of the curious little shell found at Burslem and 

 elsewhere in the Coal Measures of jSorth Staffordshire to Car- 

 honicola Vinti removes all doubt concerning a very curious fossil. 

 The exact value of the zone of G. Vinti has yet to be determined. 

 He wished to congratulate the Author on his careful working 

 ^ut of the material. 



Mr. Gaewood also spoke. 



2b2 



