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GREGORY

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Originally appearing in Volume V12, Page 577 of the 1911 Encyclopedia Britannica.
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GREGORY ,' the name of a Scottish See also:

family, many members of which attained high See also:eminence in various departments of See also:science, fourteen having held professorships in See also:mathematics or See also:medicine. Of the most distinguished of their number a See also:notice is given below. I. See also:DAVID GREGORY (1627–1720), eldest son of the Rev. See also:John Gregory of Drumoak, See also:Aberdeenshire, who married See also:Janet See also:Anderson in 1621. He was for some See also:time connected with a See also:mercantile See also:house in See also:Holland, but on succeeding to the family See also:estate of Kinardie returned to See also:Scotland, and occupied most of his time in scientific pursuits, freely giving his poorer neighbours the benefit of his medical skill. He is said to have been the first possessor of a See also:barometer in the See also:north of Scotland; and on See also:account of his success by means of it in predicting changes in the See also:weather, he was accused of See also:witchcraft before the See also:presbytery of See also:Aberdeen, but he succeeded in convincing that See also:body of his innocence. II. See also:JAMES GREGORY (1638–1675), Scottish mathematician, younger See also:brother of the preceding, was educated at the See also:grammar school of Aberdeen and at Marischal See also:College of that See also:city. At an See also:early See also:period he manifested a strong inclination and capacity for mathematics and kindred sciences; and in 1663 he published his famous See also:treatise Optica promota, in which he made known his See also:great invention, the Gregorian reflecting See also:telescope. About 1665 .he went to the university of See also:Padua, where he studied for some years, and in 1667 published See also:Vera circuli et hyperbolae quadratura, in which he discussed See also:infinite convergent See also:series for the areas of the circle and See also:hyperbola. In the following See also:year he published also at Padua Geometriae pars universalis, in which he gave a series of rules for the rectification of curves and the See also:mensuration of their solids of revolution.

On his return to See also:

England in this year he was elected a See also:fellow of the Royal Society; in 1669 he became See also:professor of mathematics in the university of St See also:Andrews; and in 1674 he was transferred to the See also:chair of mathematics in See also:Edinburgh. In See also:October 1675, while showing the satellites of the See also:planet See also:Jupiter to some of his students through one of his telescopes, he was suddenly struck with See also:blindness, and he died a few days afterwards. He was also the author of Exercitationes geometricae (1668), and, it is alleged, of a satirical See also:tract entitled The Great and New See also:Art of Weighing Vanity, intended to ridicule certain fallacies of a See also:con-temporary writer on See also:hydraulics, and published at See also:Glasgow in 1672, professedly by " See also:Patrick Mathers, archbeadle of the university of St Andrews." ' See A. G. See also:Stewart, The See also:Academic Gregories.which he See also:left in See also:manuscript was translated from the Latin and published in 1745. He was succeeded in the chair of mathematics in Edinburgh by his brother James; another brother, See also:Charles, was in 1707 appointed professor of mathematics in the university of St Andrews; and his eldest son, David (1696–1767), became professor of See also:modern See also:history at See also:Oxford, and See also:canon and subsequently See also:dean of See also:Christ See also:Church. IV. JOHN GREGORY (1724–1773), Scottish physician, See also:grandson of James Gregory (1638–1675) and youngest son of Dr James Gregory (d. 1731), professor of medicine in See also:King's College, Aberdeen, was See also:born at Aberdeen on the 3rd of See also:June 1724. He received his early See also:education at the grammar school of Aberdeen and at King's College in that city, and in 1741 he attended the medical classes at Edinburgh university. In 1745 he went to See also:Leiden to See also:complete his medical studies, and during his stay there he received without solicitation the degree of See also:doctor of medicine from King's College, Aberdeen. On his return from Holland he was elected professor of See also:philosophy at King's College, but in 1749 he resigned his professorship on account of its duties interfering too much with his private practice.

In 1754 he proceeded to See also:

London, where he made the acquaintance of many persons of distinction, and the same year was chosen fellow of the Royal Society. On the See also:death in See also:November 1755 of his brother Dr James Gregory, who had succeeded his See also:father as professor of medicine in King's College, Aberdeen, he was appointed to that See also:office. In 1764 he removed to Edinburgh in the See also:hope of obtaining a more extended See also:field of practice as a physician, and in 1766 he was appointed professor of the practice of medicine in the university of Edinburgh, to whose eminence as a medical school he largely contributed. He died of See also:gout on the loth of See also:February 1773. He is the author of A See also:Comparative View of the See also:State and Faculties of See also:Man with those of the See also:Animal See also:World (1765); Observations on the Duties, Offices and Qualifications of a Physician (1772); Elements of the Practice of Physic (1772); and A Father's See also:Legacy to his Daughters (1774). His Whole See also:Works, with a See also:life by Mr See also:Tytler (after-wards See also:Lord Woodhouselee), were published at Edinburgh in 1788. V. JAMES GREGORY (1753-1821), Scottish physician, eldest son of the preceding, was born at Aberdeen in See also:January 1753, He accompanied his father to Edinburgh in 1764, and after going through the usual course of See also:literary studies at that university, he was for a See also:short time a student at See also:Christchurch, Oxford. It was there probably that he acquired that See also:taste for classical learning which afterwards distinguished him. He studied medicine at Edinburgh, and, after graduating doctor of medicine in 1774, spent the greater See also:part of the next two years in Holland, See also:France and See also:Italy. Shortly after his return to Scotland he was appointed in 1776 to the chair his father had formerly held, and in the following year he also entered on the duties of teacher of clinical medicine in the Royal Infirmary. On the illness of Dr See also:William See also:Cullen in 1700 he was appointed See also:joint-professor of the practice of medicine, and he became the See also:head of the Edinburgh Medical School on the death of Dr Cullen in the same year.

He died on the 2nd of See also:

April 1821. As a medical practitioner Gregory was for the last ten years of his life at the head of the profession in Scotland. He was at one time See also:president of the Edinburgh College of Physicians, but his indiscretion in See also:publishing certain private proceedings of the college led to his suspension on the 13th of May 1809 from all rights and privileges which pertained to the fellowship. Besides his Conspectus medicinae theoreticae, published in 1788 as a See also:text-See also:book for his lectures on the institutes, Dr Gregory was the author of " A Theory of the Moods of Verbs," published in the Edin. Phil. Trans. (1787), and of Literary and Philosophical Essays, published in two volumes in 1792. VI. WILLIAM GREGORY (1803–1858), son of James Gregory (1753–1821),. was born on the 25th of See also:December 1803. In 1837 he became professor of See also:chemistry at the Andersonian Institution, Glasgow, in 1839 at King's College, Aberdeen, and in 1844 at Edinburgh University. He died on the 24th of April ,858. Gregory was one of the first in England to See also:advocate the theories of Justus von See also:Liebig, and translated several of his works.

He is also the author of Outlines of Chemistry (1845), and an Ele. mentary Treatise on Chemistry (1853). of the preceding, was born on the 13th of April 1813. After of See also:

Pomerania, on the navigable Ryk, 3 M. from its mouth on studying at the university of Edinburgh he in 1833 entered the Baltic at the little See also:port of Wyk, and 20 M. S.E. from See also:Stralsund Trinity College, See also:Cambridge, where he was for a time assistant professor of chemistry, but he devoted his See also:attention chiefly to mathematics. He died on the 23rd of February 1844. The Cambridge Mathematical See also:Journal was originated, and for some time edited, by him; and he also published a Collection of Examples of Processes in the See also:Differential and Integral Calculus (1841). A Treatise on the Application of See also:Analysis to Solid See also:Geometry, which he left unfinished, was completed by W. See also:Walton, and published posthumously in 1846. His Mathematical Writings, edited by W. Walton, with a See also:biographical memoir by See also:Robert See also:Leslie See also:Ellis, appeared in 1865.

End of Article: GREGORY

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