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See also:DRUMMOND, See also:- THOMAS
- THOMAS (c. 1654-1720)
- THOMAS (d. 110o)
- THOMAS, ARTHUR GORING (1850-1892)
- THOMAS, CHARLES LOUIS AMBROISE (1811-1896)
- THOMAS, GEORGE (c. 1756-1802)
- THOMAS, GEORGE HENRY (1816-187o)
- THOMAS, ISAIAH (1749-1831)
- THOMAS, PIERRE (1634-1698)
- THOMAS, SIDNEY GILCHRIST (1850-1885)
- THOMAS, ST
- THOMAS, THEODORE (1835-1905)
- THOMAS, WILLIAM (d. 1554)
THOMAS (r797-1840) , See also:British inventor and See also:administrator, was See also:born at See also:Edinburgh on the loth of. See also:October 1797, and was educated at the high school there. He was appointed to a cadetship at the Royal Military See also:Academy, See also:Woolwich, in 1813; and in 1815 he entered the Royal See also:Engineers. In 1819, when meditating the renunciation of military service for the See also:bar, he made the acquaintance of See also:Colonel T. F. See also:Colby (1784-1852), from whom in the following See also:year he received an See also:appointment on the trigonometrical survey of See also:Great See also:Britain. During his winters in See also:London he attended the chemical lectures of W. T. See also:Brande and M. See also:Faraday at the Royal Institution, and the mention at one of these of the brilliant luminosity of See also:lime when incandescent suggested to him the employment of the lime See also:light for making distant See also:surveying stations visible. In 1825, when he was assisting Colby in the Irish survey, his lime-light apparatus (" Drummond light ") was put to a See also:practical test, and enabled observations to be completed between Divis See also:mountain, near See also:Belfast, and Slieve Snaght, a distance of 67 m. About the same See also:- TIME (0. Eng. Lima, cf. Icel. timi, Swed. timme, hour, Dan. time; from the root also seen in " tide," properly the time of between the flow and ebb of the sea, cf. O. Eng. getidan, to happen, " even-tide," &c.; it is not directly related to Lat. tempus)
- TIME, MEASUREMENT OF
- TIME, STANDARD
time he also devised an improved See also:heliostat, and in 1829 he was employed in adopting his light for lighthouse purposes. In 1831 he entered See also:political See also:life and was appointed See also:superintendent of the boundary See also:commission. Four years later he was made under-secretary of See also:state for See also:Ireland, where he proved himself a most successful administrator, and did much to promote See also:law and See also:- ORDER
- ORDER (through Fr. ordre, for earlier ordene, from Lat. ordo, ordinis, rank, service, arrangement; the ultimate source is generally taken to be the root seen in Lat. oriri, rise, arise, begin; cf. " origin ")
- ORDER, HOLY
order. It was he who in 1838 told the Irish landlords that " See also:property has its duties as well as its rights." In 1836 he proposed the appointment of a commission on See also:rail-ways in Ireland, and took a Iarge See also:share in its See also:work, which resulted in the recommendation, not, however, carried out, that the state should construct a See also:system of lines throughout the See also:island. Drummond's See also:health was undermined by overwork, and he died at See also:Dublin on the 15th of See also:April 1840.
See Life by J. F. M'Lennan (1867) ; Life and Letters by R. See also:Barry O'Brien (1889); and See also:Sir T. A. Larcom in Papers on the Duties of the Royal Engineers, vol. iv. (1840).
End of Article: DRUMMOND, THOMAS (r797-1840)
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