Clar Litridheacht Na Nua Gaedhilge 1850-1936. Published by Oifig Diolta Foillseachain Rialtais, Dublin, 1938, ’39, ’40. Three Volumes. Publisher’s smooth gree cloth boards, title letteres in gilt to spines. A fine bright set.

Risteard de Hae’s major work published between 1938 and 1940 was the ‘Modern Irish Spelling Programme 1850-1936’.

Brighid Ní Dhonnchadha is co-author of the first volume (1938). The other two volumes are solely edited by de Hae. 

Described as a brilliant linguist, de Hae joined the National Library service in 1926, & was appointed Director to succeed R.I. Best in 1940. During WW2 he served with Ireland’s G2 intelligence service as chief codebreaker.