Alexander Henry Green
Encyclopedia
Alexander Henry Green FRS (October 10, 1832 – August 19, 1896) was an English
England
England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west; the Irish Sea is to the north west, the Celtic Sea to the south west, with the North Sea to the east and the English Channel to the south separating it from continental...

 geologist
Geologist
A geologist is a scientist who studies the solid and liquid matter that constitutes the Earth as well as the processes and history that has shaped it. Geologists usually engage in studying geology. Geologists, studying more of an applied science than a theoretical one, must approach Geology using...

.

Born at Maidstone
Maidstone
Maidstone is the county town of Kent, England, south-east of London. The River Medway runs through the centre of the town linking Maidstone to Rochester and the Thames Estuary. Historically, the river was a source and route for much of the town's trade. Maidstone was the centre of the agricultural...

, he was the son of the Rev. Thomas Sheldon Green, master of the Ashby Grammar School. He was educated partly at his father's school, Ashby-de-la-Zouch
Ashby-de-la-Zouch
Ashby-de-la-Zouch, — Zouch being pronounced "Zoosh" — often shortened to Ashby, is a small market town and civil parish in North West Leicestershire, England, within the National Forest. It is twinned with Pithiviers in north-central France....

, and afterwards at Gonville and Caius College, Cambridge
Gonville and Caius College, Cambridge
Gonville and Caius College is a constituent college of the University of Cambridge in Cambridge, England. The college is often referred to simply as "Caius" , after its second founder, John Keys, who fashionably latinised the spelling of his name after studying in Italy.- Outline :Gonville and...

, where he graduated as sixth wrangler in 1855 and was elected a fellow of his college. In 1861 he joined the Geological Survey of Great Britain, and surveyed large areas of the midland counties, Derbyshire
Derbyshire
Derbyshire is a county in the East Midlands of England. A substantial portion of the Peak District National Park lies within Derbyshire. The northern part of Derbyshire overlaps with the Pennines, a famous chain of hills and mountains. The county contains within its boundary of approx...

 and Yorkshire
Yorkshire
Yorkshire is a historic county of northern England and the largest in the United Kingdom. Because of its great size in comparison to other English counties, functions have been increasingly undertaken over time by its subdivisions, which have also been subject to periodic reform...

.

He wrote (wholly or in part) memoirs on the Geology of Banbury (1864), of Stockport (1866), of North Derbyshire (1869, 2nd ed. 1887), and of the Yorkshire Coal-field (1878). In 1874 he retired from the Geological Survey, having been appointed professor of geology in the Yorkshire College at Leeds; in 1885 he became also professor of mathematics
Mathematics
Mathematics is the study of quantity, space, structure, and change. Mathematicians seek out patterns and formulate new conjectures. Mathematicians resolve the truth or falsity of conjectures by mathematical proofs, which are arguments sufficient to convince other mathematicians of their validity...

, while for many years he held the lectureship on geology at the school of military engineering at Chatham.

He was elected fellow of the Royal Society
Royal Society
The Royal Society of London for Improving Natural Knowledge, known simply as the Royal Society, is a learned society for science, and is possibly the oldest such society in existence. Founded in November 1660, it was granted a Royal Charter by King Charles II as the "Royal Society of London"...

 in 1886, and two years later was chosen professor of geology in the University of Oxford
University of Oxford
The University of Oxford is a university located in Oxford, United Kingdom. It is the second-oldest surviving university in the world and the oldest in the English-speaking world. Although its exact date of foundation is unclear, there is evidence of teaching as far back as 1096...

. In 1892 he was awarded the Murchison Medal
Murchison Medal
An award established by Roderick Murchison, who died in 1871. One of the closing public acts of Murchison’s life was the founding of a chair of geology and mineralogy in the University of Edinburgh. Under his will there was established the Murchison Medal and geological fund to be awarded annually...

 of the Geological Society of London
Geological Society of London
The Geological Society of London is a learned society based in the United Kingdom with the aim of "investigating the mineral structure of the Earth"...

.

His wrote a manual of Physical Geology (1876, 3rd ed. 1882).

He died at Boars Hill
Boars Hill
Boars Hill is a hill hamlet southwest of Oxford, straddling the boundariy between the civil parishes of Sunningwell and Wootton. It was part of Berkshire until the 1974 boundary changes transferred it to Oxfordshire.-History:...

, Oxford, on 19 August 1896.

A portrait of him, with brief memoir, was published in Proc. Yorksh. Geol. and Polytechnic Soc. xiii. 232.

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