Aids to the pronunciation of Irish

The Christian Brothers. — Dublin: M.H. Gill, 1922. — 107 p.The Organs of Speech.
Voiced and Voiceless Sounds.
Movements of Tongue and Lips.
The Irish Vowels.
Table of Irish Consonants.
Aspiration.
Caol Le Caot, Leatan te Leatan.
Rules for the Tonic Accent.
Protected Liquids.
Digraphs.
Trigraphs.
Combination of the Consonants.
Index