"Dominie Deasy kens them a'": Stephen remembers the various
kinds of shells that his employer keeps "heaped in the cold
stone mortar" on the table in his office. Dominie is a
Scottish term for a schoolmaster, often one in the Church of
Scotland, and "kens them a'" is Scots dialect for "knows them
all." So, Schoolmaster Deasy knows all the types of sea
shells.
Which begs the question of why Stephen may be lapsing into
Scottish idiom at this moment. The likely explanation is that
Deasy is an Ulsterman,
and much of Ulster was settled
by Scottish emigrants in the 17th century. As a Unionist from the North,
embued with the Protestant
ethos of making and saving money, Deasy figures in
Stephen's consciousness as a Scotsman.
Ellmann identifies the real-life
model model for Mr. Deasy, Francis Irwin, as an "Ulster
Scot, very pro-British," and he observes that the name Deasy
is "oddly inappropriate for an Ulster Scot" (33). But Deasy is
a common name in Angus county in Scotland, tracing back to the
Picts, and some Deasys did move to Ireland.