Bartholomew Lloyd (1772–1837) was an Irish mathematician and academic whose entire career was spent at

Trinity College Dublin , name_Latin = Collegium Sanctae et Individuae Trinitatis Reginae Elizabethae juxta Dublin , motto = ''Perpetuis futuris temporibus duraturam'' (Latin) , motto_lang = la , motto_English = It will last i ...

. As Erasmus Smith's Professor of Mathematics there, he promoted significant curricular reforms, including the introduction of the teaching of

calculus Calculus, originally called infinitesimal calculus or "the calculus of infinitesimals", is the mathematical study of continuous change, in the same way that geometry is the study of shape, and algebra is the study of generalizations of arithm ...

. Later he served as Provost of the college.

Life

Born at New Ross, County Wexford, 5 February 1772, he was son of Humphrey Lloyd, himself the son of the Rev. Bartholomew Lloyd of the Abbey House of New Ross. His father died while he was still a boy, and an uncle, the Rev. John Lloyd, rector of Ferns and Kilbride, to whose care he had been given, also died shortly, so that he was left to struggle for himself. He entered Trinity College Dublin, in 1787 as a pensioner. In 1790 he was elected a Scholar of the College, in 1792 graduated B.A., and in 1796 obtained a junior fellowship. He graduated M.A. in the same year, B.D. in 1805, and D.D. in 1808. In 1813 Lloyd was appointed Erasmus Smith's Professor of Mathematics on the resignation of William Magee, and in 1822,

Erasmus Smith's Professor of Natural and Experimental Philosophy Erasmus Smith's Professor of Natural and Experimental Philosophy at Trinity College Dublin is a chair in physics founded in 1724 and funded by the Erasmus Smith Trust, which was established by Erasmus Smith, a wealthy London merchant, who live ...

in succession to William Davenport. In both chairs he made a radical change in the methods of teaching, and was the first to introduce French mathematical innovations into Trinity College, including the teaching of the calculus. In 1821 and again in 1823 and 1825 he was elected regius professor of Greek in the university, and in 1823 and again in 1827 Archbishop King's lecturer in divinity. In 1831 he was elected Provost of the college, in succession to Samuel Kyle who became

bishop of Cork and Ross The Bishop of Cork and Ross is an episcopal title which takes its name after the city of Cork and the town of Rosscarbery in Republic of Ireland. The combined title was first used by the Church of Ireland from 1638 to 1660 and again from 1679 to ...

. Trinity's magnetic observatory was founded through Lloyd's influence. In 1835 he was appointed president of the Royal Irish Academy, and in the same year acted as president of the

British Association The British Science Association (BSA) is a charity and learned society founded in 1831 to aid in the promotion and development of science. Until 2009 it was known as the British Association for the Advancement of Science (BA). The current Chie ...

meeting at Dublin. His inaugural address dealt mainly with "the correspondence of the objects of science with divine revelation". Lloyd died suddenly of

apoplexy Apoplexy () is rupture of an internal organ and the accompanying symptoms. The term formerly referred to what is now called a stroke. Nowadays, health care professionals do not use the term, but instead specify the anatomic location of the bleedi ...

, 24 November 1837, and was buried in the college chapel. The Lloyd Exhibitions were founded by subscription in 1839 in his memory. A marble bust of him by Thomas Kirk stood in the library of Trinity College.

Works

In addition to scientific papers, Lloyd was author of: * 1819: ''A Treatise on Analytic Geometry'', London. * 1822: ''Discourses, chiefly Doctrinal, delivered in the Chapel of Trinity College, Dublin'', London. * 1826
An Elementary Treatise of Mechanical Philosophy
Dublin, link from

Internet Archive The Internet Archive is an American digital library with the stated mission of "universal access to all knowledge". It provides free public access to collections of digitized materials, including websites, software applications/games, music, ...

Family

Lloyd was married young to Eleanor McLaughlin, by whom he had ten children, four sons and six daughters. The eldest was Humphrey Lloyd. The diplomat Charles Dalton Clifford Lloyd was a grandson, son of Colonel Robert Clifford Lloyd and Annie Savage. Bartholomew Lloyd bust

Legacy

A plaque to Lloyd was erected at the Tholsel, New Ross in 2018 organised by the National Committee for Commemorative Plaques in Science and Technology. It was unveiled by Trinity Provost, Professor Patrick Prendergast.

References

;Attribution {{DEFAULTSORT:Lloyd, Bartholomew 1772 births 1837 deaths Alumni of Trinity College Dublin Classical scholars of Trinity College Dublin Irish classical scholars Irish mathematicians Provosts of Trinity College Dublin Scholars of Trinity College Dublin