In a previous paper I have endeavoured to give a picture of Scotland in the dark period of its history preceding the 9th century, and to describe the constitution of the early Columban clergy who did so much to Christianize and civilize it. I also gave such an account as our frail materials would enable me of the destruction and ravaging of the settlements of the monks by the Norsemen. I now propose to give a parallel picture of the early monks in Ireland and to describe how they also were the victims of the same famous rovers, and I venture to hope that a subject so little explored may not be unwelcome to the Historical Society.