It was only whilst this concluding sheet was 

 passing through the press, that I saw a short paper, 

 by John Phillips, Esq., " On the Remains of 

 Microscopic Animals in the Rocks of Yorkshire," 

 published in the " Reports of the Proceedings of 

 the Geological and Polytechnic Society of the 

 West Riding of Yorkshire, for 1844-45." It 

 confirms the statement of the existence of numerous 

 Forarainifera in the Oolitic and Mountain Lime- 

 stones. Dr. Carpenter also informs me, that he has 

 seen one specimen of Oolitic limestone in which 

 every oolitic granule contained a Foraminifer. 

 Dr. Carpenter has been equally unsuccessful with 

 myself in his search after Foraminifera amongst 

 Mr. Darwin's South American specimens. 



