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- Major-General Joseph Ellison Portlock (30 September 1794 – 14 February 1864) was born at Gosport and was a British geologist and soldier, the only son of Nathaniel Portlock, and a captain in the Royal Navy. Educated at Blundell's School and the Royal Military Academy, Portlock entered the Royal Engineers in 1813. In 1814, he took part in the frontier operations in Canada. In 1824, he was selected by Lieut-colonel (afterwards Major-General) T.F. Colby (1784–1852) to take part in Ordnance Survey of Ireland. He was engaged for several years in the trigonometrical branch and subsequently compiled information on the physical aspects, geology, and economic products of Ireland, including the Memoir for which he wrote substantial sections on productive economy. In 1837, he formed at Belfast a geological and statistical office, a museum for geological and zoological specimens, and a laboratory for the examination of soils. The work was then carried on by Portlock as the geological branch of the Ordnance Survey, and the chief results were embodied in his Report on the Geology of the County of Londonderry and of parts of Tyrone and Fermanagh (1843), an elaborate and well-illustrated volume in which he was assisted by Thomas Oldham. After serving in Corfu and at Portsmouth, he was, in 1849, appointed Commanding Royal Engineer at Cork, and from 1851–1856, he was Inspector of Studies at the Royal Military Academy, Woolwich. For a short time, commanding officer at Dover, when the Council of Military Education was formed in 1857, he was selected as a member. During these years of active service, he contributed numerous geological papers to the scientific societies of Dublin and to the British Association. He published, in 1848, a treatise on geology in John Weale's Rudimentary Series (3rd. ed., 1853). He was president of the geological section of the British Association at Belfast (1852) and of the Geological Society of London (1856-1858). He wrote a Memoir of the late Major-General Colby, with a Sketch of the Origin and Progress of the Trigonometrical Survey (reprinted in 1869 from Papers on Subjects connected with the Royal Engineers, vols. iii-v.). He also contributed several articles on military subjects to the 8th edition of the Encyclopaedia. He was elected a Fellow of the Royal Society in 1837. He died in Dublin on 14 February 1864. He married twice: firstly Julia Browne at Kilmaine, Co Mayo, Ireland on 24 February 1831, and secondly to Fanny Turner at Cork, Ireland on 11 December 1849. Fanny was the 4th daughter of , KH commander of the Cork District. There was no issue from either marriage.He conducted experimentation, using oxyhydrogen drummond light heliostats to reflect the sun's rays 108 miles over the St George Channel, proving the earth does not have detectable curvature to support a globe hypothesis. (en)
- Le major-général Joseph Ellison Portlock (30 septembre 1794 - 14 février 1864) est né à Gosport et est un géologue et soldat britannique, fils unique de Nathaniel Portlock et capitaine de la Royal Navy. (fr)
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- Le major-général Joseph Ellison Portlock (30 septembre 1794 - 14 février 1864) est né à Gosport et est un géologue et soldat britannique, fils unique de Nathaniel Portlock et capitaine de la Royal Navy. (fr)
- Major-General Joseph Ellison Portlock (30 September 1794 – 14 February 1864) was born at Gosport and was a British geologist and soldier, the only son of Nathaniel Portlock, and a captain in the Royal Navy. After serving in Corfu and at Portsmouth, he was, in 1849, appointed Commanding Royal Engineer at Cork, and from 1851–1856, he was Inspector of Studies at the Royal Military Academy, Woolwich. For a short time, commanding officer at Dover, when the Council of Military Education was formed in 1857, he was selected as a member. (en)
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