meteorologist of distinction.

George Salmon (b. in Dublin 1819, d. 1904), like the last mentioned
subject, was, at the time of his death, Provost of Trinity College,
Dublin. Besides theological writings, he contributed much to
mathematical science, especially in the directions of conic sections,
analytic geometry, higher plane curves, and the geometry of three
dimensions. He was a Fellow of the Royal Society, and received the
Copley and Royal medals, as well as distinctions from many
universities and learned societies.

John Casey (b. Kilkenny 1820, d. 1891), F.R.S., was educated at a
National School and became a teacher in one in later years. Entirely
self-taught as a mathematician, he raised himself from the humble
position which he occupied to be a university professor (in the
Catholic University of Ireland, and afterwards in the Royal
University), and earned the highest reputation as one of the greatest
authorities on plane geometry. He was a correspondent of eminent
mathematicians all over the world.

Henry Hennessey (b. in Cork 1826, d. 1901), F.R.S., was also a
professor in the Catholic University of Ireland and afterwards in the
Royal College of Science in Dublin. He was a writer on mathematics,
terrestrial physics, and climatology.

Benjamin Williamson (b. in Cork 1827), F.R.S., is a Senior Fellow of
Trinity College, Dublin, and a distinguished writer on mathematical
subjects, especially on the differential, integral, and infinitesimal
calculuses.