NORTH ROCKS, (otherwise called St Patrick's rocks,
from a feat of stone amongst them called St Patrick's
chair
, whence the rocks have taken this second name);
situated in the harbour of Donaghadee, in the county
of Down, and province of Ulster, in Ireland. From

north to south they are about two thirds of a league,
between which is clean good ground. But care must
be taken of the south rock, on which many ships have
perished: for it is overflowed by every tide, and no
crew can save their lives if the wind blows high. This
rock stands a full mile from the shore.