LAMLASH. GEOLOGY. 439 



that marie occurs on the shore opposite to Kilbride, appa- 

 rently formed of fragments of sea-shells and madreporites. 

 This circumstance may also be observed in Bute, and in other 

 places where I have thought it unnecessary to describe 

 it. In all the cases it appears to have resulted from 

 the retiring of the sea, and to consist of those accumula- 

 tions which once formed the sandy shores. 



