Penal Laws, [512], [554], [594]

Persecution of Irish authors, [560] ff.

Persian history, [78]

Petrie, [xii], his antiquities of Tara, [447]; on Irish shrines, [457]

Petronius, [276]

Petty, Sir William, [15], [618]

Philip of Macedon and the Celts, [7]

Philomela, an Irish, [393]

Phœnicians, [6]

Picts of Scotland, [34]; or Cruithni, [282-3], [371]