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Sir Joseph Barcroft (26 July 1872 – 21 March 1947) was a British
physiologist Physiology (; ) is the scientific study of functions and mechanisms in a living system. As a subdiscipline of biology, physiology focuses on how organisms, organ systems, individual organs, cells, and biomolecules carry out chemical and ...
best known for his studies of the oxygenation of
blood Blood is a body fluid in the circulatory system of humans and other vertebrates that delivers necessary substances such as nutrients and oxygen to the cells, and transports metabolic waste products away from those same cells. Blood is com ...
.


Life

Born in Newry,
County Down County Down () is one of the six counties of Northern Ireland, one of the nine counties of Ulster and one of the traditional thirty-two counties of Ireland. It covers an area of and has a population of 552,261. It borders County Antrim to the ...
into a
Quaker Quakers are people who belong to the Religious Society of Friends, a historically Protestant Christian set of denominations. Members refer to each other as Friends after in the Bible, and originally, others referred to them as Quakers ...
family, he was the son of Henry Barcroft DL and Anna Richardson Malcomson of ''The Glen'', Newry – a property purchased for his parents by his mother's uncle, John Grubb Richardson and adjoining his own estate in Bessbrook. He was initially educated at Bootham School,
York York is a cathedral city in North Yorkshire, England, with Roman Britain, Roman origins, sited at the confluence of the rivers River Ouse, Yorkshire, Ouse and River Foss, Foss. It has many historic buildings and other structures, such as a Yor ...
and later at The Leys School, Cambridge. He married Mary Agnetta Ball, daughter of Sir Robert S. Ball, in 1903. He received his degree in Medicine and Science in 1896 from
Cambridge University The University of Cambridge is a Public university, public collegiate university, collegiate research university in Cambridge, England. Founded in 1209, the University of Cambridge is the List of oldest universities in continuous operation, wo ...
, and immediately began his studies of
haemoglobin Hemoglobin (haemoglobin, Hb or Hgb) is a protein containing iron that facilitates the transportation of oxygen in red blood cells. Almost all vertebrates contain hemoglobin, with the sole exception of the fish family Channichthyidae. Hemoglobi ...
. In May 1910 he was elected a
Fellow of the Royal Society Fellowship of the Royal Society (FRS, ForMemRS and HonFRS) is an award granted by the Fellows of the Royal Society of London to individuals who have made a "substantial contribution to the improvement of natural science, natural knowledge, incl ...
and would be awarded their
Royal Medal The Royal Medal, also known as The Queen's Medal and The King's Medal (depending on the gender of the monarch at the time of the award), is a silver-gilt medal, of which three are awarded each year by the Royal Society. Two are given for "the mo ...
in 1922 and their
Copley medal The Copley Medal is the most prestigious award of the Royal Society of the United Kingdom, conferred "for sustained, outstanding achievements in any field of science". The award alternates between the physical sciences or mathematics and the bio ...
in 1943. He would also deliver their Croonian Lecture in 1935. In both the
First World War World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ...
and
Second World War World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
he had the prestigious role of Chief Physiologist at the Gas Warfare Centre at Porton Down near
Salisbury Salisbury ( , ) is a city status in the United Kingdom, cathedral city and civil parish in Wiltshire, England with a population of 41,820, at the confluence of the rivers River Avon, Hampshire, Avon, River Nadder, Nadder and River Bourne, Wi ...
. In 1936 he was nominated, unsuccessfully, by Professor Arthur Dighton Stammers, Professor of Physiology in the
University of the Witwatersrand The University of the Witwatersrand, Johannesburg (), commonly known as Wits University or Wits, is a multi-campus Public university, public research university situated in the northern areas of central Johannesburg, South Africa. The universit ...
, for the
Nobel Prize The Nobel Prizes ( ; ; ) are awards administered by the Nobel Foundation and granted in accordance with the principle of "for the greatest benefit to humankind". The prizes were first awarded in 1901, marking the fifth anniversary of Alfred N ...
in Physiology or Medicine, for his work on the respiratory function of the blood and the functions of the spleen. In the course of his research, he did not hesitate to use himself as a test subject. For example, during the
First World War World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ...
, when he was called to Royal Engineers Experimental Station (near
Salisbury Salisbury ( , ) is a city status in the United Kingdom, cathedral city and civil parish in Wiltshire, England with a population of 41,820, at the confluence of the rivers River Avon, Hampshire, Avon, River Nadder, Nadder and River Bourne, Wi ...
) to carry out experiments on asphyxiating gas, he exposed himself to an atmosphere of poisonous
hydrogen cyanide Hydrogen cyanide (formerly known as prussic acid) is a chemical compound with the chemical formula, formula HCN and structural formula . It is a highly toxic and flammable liquid that boiling, boils slightly above room temperature, at . HCN is ...
. On another occasion he remained for seven days in a glass chamber in order to calculate the minimum quantity of oxygen required for the survival of the human organism, and another time he exposed himself to such a low temperature that he collapsed into unconsciousness. He also studied the physiology of oxygenation at extreme altitudes, and for this purpose he organized expeditions to the peak of
Tenerife Tenerife ( ; ; formerly spelled ''Teneriffe'') is the largest and most populous island of the Canary Islands, an Autonomous communities of Spain, autonomous community of Spain. With a land area of and a population of 965,575 inhabitants as of A ...
(1910), to
Monte Rosa Monte Rosa (; ; ; or ; ) is a mountain massif in the eastern part of the Pennine Alps, on the border between Italy (Piedmont and Aosta Valley) and Switzerland (Valais). The highest peak of the massif, amongst several peaks of over , is the D ...
(1911), and to the Peruvian
Andes The Andes ( ), Andes Mountains or Andean Mountain Range (; ) are the List of longest mountain chains on Earth, longest continental mountain range in the world, forming a continuous highland along the western edge of South America. The range ...
(1922). Between 1902 and 1905 he was a Governor of Leighton Park School, the Quaker School in Reading. From 1925 to 1937 he held the chair of physiology at Cambridge. His final research, begun in 1933, concerned fetal respiration. He was appointed a Commander of the
Order of the British Empire The Most Excellent Order of the British Empire is a British order of chivalry, rewarding valuable service in a wide range of useful activities. It comprises five classes of awards across both civil and military divisions, the most senior two o ...
(CBE) in the 1918 Birthday Honours, and knighted in the 1935 Birthday Honours. He was elected a Foreign Honorary Member of the
American Academy of Arts and Sciences The American Academy of Arts and Sciences (The Academy) is one of the oldest learned societies in the United States. It was founded in 1780 during the American Revolution by John Adams, John Hancock, James Bowdoin, Andrew Oliver, and other ...
in 1938. During the first years of the
Second World War World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
he was again summoned to Porton Down to consult on chemical weapons. He died in
Cambridge Cambridge ( ) is a List of cities in the United Kingdom, city and non-metropolitan district in the county of Cambridgeshire, England. It is the county town of Cambridgeshire and is located on the River Cam, north of London. As of the 2021 Unit ...
in 1947.


Publications

*''The Respiratory Function of the Blood'' (1914) *''Features in the Architecture of the Physiological Function'' (1934)


References


Further reading

Most of this article was drawn from the corresponding article on the Italian Wikipedia retrieved (12 June 2006). {{DEFAULTSORT:Barcroft, Joseph 1872 births 1947 deaths People from Newry Irish Quakers British Quakers British physiologists Fullerian Professors of Physiology Recipients of the Copley Medal Royal Medal winners Fellows of the Royal Society Foreign associates of the National Academy of Sciences Fellows of the American Academy of Arts and Sciences Commanders of the Order of the British Empire Knights Bachelor Professors of Physiology (Cambridge) Alumni of King's College, Cambridge Presidents of the Cambridge Philosophical Society Presidents of The Nutrition Society