ON A 



VITRIFIED FORT 



IN THE COUNTY OF CAVAN. 



BY THE REV. C^SAR OTWAY. 



Dear Sir, 



Read April 28, 1817. 



Leixltp, Jan. 10, 1817. 



I beg leave through your means to announce 

 to the Royal Irish Academy^ the existence of the remains of a Vitri- 

 fied Fort in Ireland. 



And, as I have reason to presume, that this is the first and only 

 account of a Fort of this constructioi\ in Ireland, I trust that the 

 communication may not be thought unworthy of the attention of 

 your learned society. 



The Vitrified Forts of Scotland, have occupied the attention of 

 the antiquarian and geologist, and much has been written concern- 

 ing the cause and mode of their construction. VThile some have 

 given them a Volcanic, others with more reason have decided that 

 they were of Human origin ; but it is still undecided whether the 

 vitrification of their materials has depended on accident or design 



R 2 



