presented it with the Book of Kells, its most famous manuscript.

James Ussher (1625-56), Archbishop of Armagh, whose most important works were Veterum Epistolarum Hibernicarum Sylloge (1632) and Brittanicarum Ecclesiarum Antiquitates (1639), left his valuable library, comprising several thousand printed books and manuscripts, to the Library. His complete works were published by the Library in twenty-four volumes.