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Authorised form of namePearson; Karl (1857 - 1936); statistician and eugenicist
Other forms of nameCarl
Dates1857 - 1936
NationalityBritish
Place of birthLondon, England
Date of birth27 March 1857
Place of deathColdharbour, Surrey
Date of death27/04/1936
Research fieldApplied mathematics
Biometry
Statistics
Eugenics
ActivityEducation:
William Penn's School, Harrow (1863-1866); University College School (1866-1873); privately tutored in Cambridge (1873-1875); King's College, Cambridge, graduated BA (1875-1879); Heidelberg and Berlin (1879-1880).
MA; LLB
Career:
entered Lincoln's Inn (1880) and called to the bar (1881); substitute lecturer in mathematics at King's College and University College, London; Goldsmid Professor of Applied Mathematics and Mechanics, University College, London (1884); founded the Men and Womens Club (1885); Gresham College Chair of Geometry (1891-1893); established a Biometric Laboratory at University College, London (1901); founded the journal 'Biometrika' with W. F. R. Weldon (1901); director of the Eugenics Record Office, later the Galton Laboratory for National Eugenics (1907); first Galton Professor of Eugenics (1911-1933); the department engaged in war service, including for Anti-Aircraft Experimental Section of the Munitions Inventions Department (1916-1918).
Honours:
Huxley Medal, Royal Anthropological Institute (1903); Rudolf Virchow Medal, Anthropological Society of Berlin (1932); LLD (University of St. Andrews); DSc (University College, London); Honorary Fellow of King's College, Cambridge (1903), Royal Society of Edinburgh and University College, London.
Membership categoryFellow
Date of election04/06/1896
Royal Society activityMedals and prizes:
Darwin Medal 1898
RelationshipsFather William Pearson K.C. (d.1907) barrister, and mother Fanny Smith (d.1907). Married: 1) Maria Sharpe (1890); 2) Margaret Victor Child (1929). One son and two daughters to his first marriage, his son Egon Sharpe Pearson (FRS 1966).
Published worksIsaac Todhunter, [ed. Karl Pearson] 'A history of the theory of the strength of materials, from Galilei to the present time' (Cambridge U.P., 1886)
Karl Pearson, 'The new Werther (1880); 'The ethic of freethought' (London, 1888); 'The grammar of science' (London, 1892); 'Mathematical contributions to the theory of evolution' (18 papers, various dates); The life, letters and labours of Francis Galton (Cambridge U.P., 1914).
General contextEugenics is a set of beliefs and practices that aim to 'improve' the physiological qualities of a human population, usually along lines of physical and mental ability. These practices have been characterised as sometimes embracing 'positive' measures, such as encouraging individuals deemed particularly fit to reproduce; and/or 'negative' measures, such as marriage prohibitions and voluntary or forced sterilization of people deemed unfit. The history of eugenics (a term coined by Francis Galton) began in the mid 19th and early 20th centuries. It was generally linked to negative views of race and class. A popular eugenics movement emerged in the United Kingdom, tied in with the thinking of physiological anthropologists, interpretations of Darwinism and natural selection, and the rise of statistical modeling and quantative analysis in science.
SourcesSources:
Bulloch's Roll; ODNB; DSB
Obituaries:
L. N. G. Filon, 'Karl Pearson 1857-1936)', Obituary Notices of Fellows of the Royal Society 1936-1938 v.2 pp.73-110, plate.
Egon Sharpe Pearson, 'Karl Pearson: an appreciation of some aspects of his life and work (Cambridge UP, 1938)
Lyndsay Andrew Farrall, 'The origin and growth of the English eugenics movement, 1865-1925', PhD thesis, Indiana University. Reprinted as STS Occassional paper no.9, (UCL London, 2019)
Bernard Norton and E. S. Pearson, 'A note on the background to, and refereeing of, R A Fisher's 1918 Paper "On the Correlation Between Relatives on the Supposition of Mendelian Inheritance"' in NR v.31 (1976-77) pp.151-162
Meg Weston Smith, 'E. A. Milne and the creation of air defence: some letters from an unprincipled brigand, 1916-1919' in NR v.44 (1990) pp.241-255
A. W. F. Edwards, 'R. A. Fisher on Karl Pearson' in NR v.48 (1994) pp 97-106, plate
Sahotra Sarkar, 'J B S Haldane and R A Fisher's draft Life of Karl Pearson' in NR 1995 v.49 (1995) pp.119-124
David C. Watt, 'Lionel Penrose, FRS (1898-1972) and eugenics: part one' in NR v.52 (1998) pp.137-151
Theodore M. Porter, 'Karl Pearson: the scientific life in a statistical age', (Princeton UP, 2004).
Virtual International Authority Filehttp://viaf.org/viaf/34522718
Royal Society codeNA8002
Archives associated with this Fellow
Reference numberTitleDate
EC/1896/14Pearson, Karl: certificate of election to the Royal Society
MM/17/60Letter from Karl Pearson [to Robert Harrison]14 May 1899
MC/24/94Letter from Karl Pearson, 7 Well Road, Hampstead N.W, to the [Royal Society]25 April 1909
MM/17/59Letter from Karl Pearson to Arthur W Rucker, Secretary, Royal Society30 March 1899
MM/15/100Letter from Karl Pearson to the Royal Society23 January 1900
MM/17/65Letter from Karl Pearson [to Robert Harrison]25 April 1900
MM/17/57Letter from Karl Pearson [to Robert Harrison]5 February 1898
MM/17/55Letter from Karl Pearson [to Herbert Rix]30 November 1895
MM/17/67Letter from Karl Pearson to Arthur W Rucker, Secretary, Royal Society22 October 1900
MM/17/66Letter from Karl Pearson [to Robert Harrison][12 July 1900]
MM/15/82Copy of an excerpt from the minutes of the Royal Society's Evolution Committee15 February 1900
MM/17/94Letter from Francis Galton to the Herbert Rix, Assistant Secretary, Royal Society19 November 1895
MM/17/50Letter from Karl Pearson [to Herbert Rix]20 March 1892
MM/17/58Letter from Karl Pearson to Robert Harrison, Assistant Secretary, Royal Society28 December 1898
MM/17/63Letter from Karl Pearson [to Robert Harrison]2 March 1900
MM/17/54Letter from Karl Pearson to Lord Rayleigh, Secretary, Royal Society22 November 1895
MM/17/56Letter from Karl Pearson to AW Rucker, Secretary, Royal Society15 October 1897
MM/17/62Letter from Karl Pearson [to Robert Harrison]16 January 1900
MM/17/68Letter from Karl Pearson [to Robert Harrison]2 November 1900
MM/17/53Letter from Karl Pearson to Francis Galton3 June 1895
NLB/23/2/44Copy letter from Robert William Frederick Harrison, to Karl Pearson, Fellow of the Royal Society8 March 1901
NLB/23/2/521Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society8 July 1904
NLB/23/2/23Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society27 February 1901
NLB/26/452Copy letter from Robert William Frederick Harrison to, Professor Karl Pearson, Fellow of the Royal Society23 March 1903
MC/24/78Letter from [George Percival] Mudge, The London Hospital Medical College, Univeristy of London, Turner Street, Mile End, London3 January 1909
NLB/19/810Copy letter from Robert William Frederick Harrison, to Messrs Harrison & Sons, St Martin's Lane1 January 1900
NLB/16/26Copy letter from Arthur William Rucker, to [Professor Karl] Pearson14 January 1898
RR/15/95Referee's report by Olaus Magnus Friedrich Erdmann Henrici, on a paper 'Mathematical contributions to the theory of evolution VIII. On the correlation of characters not quantitatively measurable' by Karl Pearson3 March 1900
NLB/6/184Copy letter from Herbert Rix, to Professor Karl Pearson, University College, W.C.21 March 1892
NLB/10/850Copy letter from an unknown correspondent, to Mr Collings, 172 Strand W.C.19 February 1895
NLB/10/816Copy letter from Herbert Rix, to Professor Karl Pearson, 7 Well Road, Hampstead, N.W.11 February 1895
NLB/8/750Copy letter from an unknown correspondent, to Mr Collings, 172 Strand15 December 1893
NLB/29/390Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society5 October 1904
NLB/48/275Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society10 June 1913
NLB/11/181Copy letter from Herbert Rix, to Mr Collings9 May 1895
NLB/10/831Copy letter from Herbert Rix, to Professor Karl Pearson, University College, Gower Street, W.C.13 February 1895
NLB/11/98Copy letter from Herbert Rix, to Lord Rayleigh [John William Strutt]20 April 1895
NLB/11/163Copy letter from Herbert Rix, to Professor Karl Pearson, Fellow of the Royal Society7 May 1895
NLB/11/224Copy letter from Herbert Rix, to Professor Karl Pearson, 7 Well Road, Hampstead, N.W.16 May 1895
NLB/12/49Copy letter from Lord Rayleigh [John William Strutt], to Professor Karl Pearson27 November 1895
NLB/13/587Copy letter from Robert William Frederick Harrison, to Messrs Harrison & Sons12 October 1896
NLB/23/2/43Copy letter from Sir Michael Foster, to Professor Karl Pearson, Fellow of the Royal Society7 March 1901
NLB/14/338Copy letter from an unknown correspondent, to Messrs Harrison & Sons20 February 1897
NLB/13/66Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, [Fellow of the Royal Society]4 June 1896
NLB/12/124Copy letter from Herbert Rix, to Professor Karl Pearson11 December 1895
NLB/13/429Copy letter from Theodore E James, to Francis Galton, Fellow of the Royal Society2 September 1896
NLB/13/556Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society7 October 1896
NLB/13/552Copy letter from Robert William Frederick Harrison, to Francis Galton, Fellow of the Royal Society6 October 1896
NLB/13/543Copy letter from Robert William Frederick Harrison, to Professor George Howard Darwin, Fellow of the Royal Society6 October 1896
NLB/13/585Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society, 7 Well Road, Hampstead, N.W.12 October 1896
NLB/13/503Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society1 October 1896
NLB/22/640Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society19 June 1901
RR/15/79Referee's report by Alexander Macalister, on a paper 'Data for the problem of evolution in man VI. A first study of the correlation of the human skull' by Alice Lee and Karl PearsonOctober 1900
RR/15/189Referee's report by Karl Pearson, on a paper 'The elastic equilibrium of circular cylinders under certain practical systems of load' by Louis Napoleon George Filon7 July 1901
RR/15/226Referee's report by Herbert Hall Turner, on a paper 'The mathematical theory of errors of judgement with especial reference to the personal equation' by Karl Pearson10 June 1901
RR/22/87Referee's report by Alfred North Whitehead, on a paper 'On the partial correlation ratio' by Karl PearsonJune 1915
RR/15/228Referee's report by George Howard Darwin, on a paper 'Mathematical contributions to the theory of evolution. X. Supplement to a memoir on skew variation' by Karl Pearson5 June 1901
RR/15/229Referee's report by George Howard Darwin and abstract proof of a paper 'Mathematical contributions to the theory of evolution. XI. On the influence of natural selection on the variability and correlation of organs' by Karl Pearson27 January 1902
RR/15/227Referee's report by Francis Galton, on a paper 'Mathematical contributions to the theory of evolution. X. Supplement to a memoir on skew variation' by Karl PearsonJune 1901
RR/15/230Referee's report by James Whitbread Lee Glaisher, on a paper 'Mathematical contributions to the theory of evolution. XI. On the influence of natural selection on the variability and correlation of organs' by Karl Pearson28 May 1902
NLB/18/553Copy letter from Arthur William Rucker, to Professor Karl Pearson, Fellow of the Royal Society[27 March 1899]
NLB/28/479Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society14 March 1904
RR/16/88Referee's report by Percy Alexander MacMahon, on a paper 'On a generalised Theory of Alternative Inheritance with special reference to Mendel's Laws' by Karl Pearson22 November 1903
RR/16/89Referee's report by George Ballard Mathews, on a paper 'On a generalised Theory of Alternative Inheritance with special reference to Mendel's Laws' by Karl Pearsonnd [c December 1903]
RR/15/9Referee's report by Walter Frank Raphael Weldon, on a paper 'On the correlation between duration of life and the numbers of offspring' by M Beeton, George Udney Yule and Karl Pearson22 May 1900
NLB/18/811Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society, 7 Well Road, Hampstead, N.W.18 May 1899
NLB/18/510Copy letter from Robert William Frederick Harrison, to Oliver Heaviside, Fellow of the Royal Society24 March 1899
NLB/16/151Copy letter from Theodore E James, to Messrs Harrison & Sons11 February 1898
NLB/15/59Copy letter from Arthur William Rucker, to Mr Darwin15 June 1897
NLB/15/143Copy letter from Robert William Frederick Harrison, to Lieutenant General Sir Richard Strachey, Fellow of the Royal Society6 July 1897
NLB/16/40Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society18 January 1898
NLB/15/184Copy letter from Robert William Frederick Harrison, to Professor Arthur Schuster, Fellow of the Royal Society10 July 1897
NLB/16/140Copy letter from Robert William Frederick Harrison, to Professor Pearson, [Fellow of the Royal Society][8 February 1898]
NLB/15/284Copy letter from Robert William Frederick Harrison, to Messrs Harrison & Sons28 July 1897
NLB/17/634Copy telegram from Robert William Frederick Harrison, to Professor Karl Pearson, [Fellow of the Royal Society], University College, Gower Street[29 November 1898]
NLB/16/222Copy letter from Robert William Frederick Harrison, to Professor G H Darwin, Fellow of the Royal Society23 February 1898
NLB/16/76Copy letter from Robert William Frederick Harrison, to Professor G H Darwin, Fellow of the Royal Society26 January 1898
NLB/15/499Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society15 October 1897
NLB/15/508Copy letter from Arthur William Rucker, to Andrew Russell Forsyth, [Fellow of the Royal Society]19 October 1897
NLB/15/494Copy letter from Arthur William Rucker, to Professor Karl Pearson, Fellow of the Royal Society14 October 1897
NLB/15/520Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society21 October 1897
NLB/17/412Copy letter from Arthur William Rucker, to Professor George Howard Darwin, [Fellow of the Royal Society]25 October 1898
NLB/15/542Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society25 October 1897
NLB/15/587Copy letter from Arthur William Rucker, to Andrew Russell Forsyth, [Fellow of the Royal Society]1 November 1897
NLB/15/631Copy letter from Arthur William Rucker, to Professor William Burnside, Fellow of the Royal Society8 November 1897
NLB/15/673Copy letter from Arthur William Rucker, to Major Percy Alexander MacMahon, Fellow of the Royal Society15 November 1897
NLB/15/695Copy letter from Robert William Frederick Harrison, to Major Percy Alexander MacMahon, Fellow of the Royal Society18 November 1897
NLB/15/476Copy letter from Arthur William Rucker, to Andrew Russell Forsyth, [Fellow of the Royal Society]11 October 1897
NLB/16/141Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society8 February 1898
NLB/15/785Copy letters sent from Robert William Frederick Harrison, to Professor Andrew Russell Forsyth, Fellow of the Royal Society10 December 1897
NLB/19/436Copy letter from Robert William Frederick Harrison, to Messrs Collings & Company2 October 1899
NLB/19/88Copy letter from Michael Foster, to Dr Karl Pearson, [Fellow of the Royal Society]16 June 1899
NLB/17/730Copy letter from Arthur William Rucker, to Professor Karl Pearson, Fellow of the Royal Society13 December 1898
NLB/17/231Copy letter from Theodore E James, to Professor Walter Frank Raphael Weldon, [Fellow of the Royal Society]12 September 1898
NLB/16/660Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society17 May 1898
NLB/18/805Copy letter from Michael Foster, to Professor Karl Pearson and Miss [Alice] Lee[16 May 1899]
NLB/15/863Copy letter from Robert William Frederick Harrison, to Professor George Howard Darwin, Fellow of the Royal Society, Newnham College, Cambridge4 January 1898
NLB/17/510Copy letter from Robert William Frederick Harrison, to Messrs Dulau & Company, 37 Soho Square, W. 10 November 1898
NLB/16/381Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society24 March 1898
NLB/17/217Copy letter from Theodore E James, to Professor George Howard Darwin, Fellow of the Royal Society 6 September 1898
NLB/17/704Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society9 December 1898
NLB/16/818Copy letter from Robert William Frederick Harrison, to Professor E Ray Lankester, Fellow of the Royal Society, 40 Nottingham Place, W.Undated
NLB/17/256Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society22 September 1898
NLB/17/454Copy letter from Arthur William Rucker, to Professor Karl Pearson, Fellow of the Royal Society3 November 1898
NLB/17/433Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society31 October 1898
NLB/17/530Copy letter from Arthur William Rucker, to Professor George Howard Darwin, [Fellow of the Royal Society]14 November 1898
NLB/17/533Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society14 November 1898
NLB/16/860Copy letter from Robert William Frederick Harrison, to Professor G H Darwin, Fellow of the Royal Society (Chairman of the Mathematical Committee)22 June 1898
NLB/17/681Copy letter from Arthur William Rucker, to Professor Karl Pearson, Fellow of the Royal Society6 December 1898
NLB/18/406Copy letter from Arthur William Rucker, to Professor [Karl] Pearson 6 March 1899
NLB/19/508Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society19 October 1899
NLB/21/392Copy letter from Arthur William Rucker, to Professor Karl Pearson, Fellow of the Royal Society[November 1900]
NLB/21/83Copy letter from Robert William Frederick Harrison, to Professor George Carey Foster, Fellow of the Royal Society25 July 1900
NLB/22/515Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society29 May 1901
NLB/19/401Copy letter from Theodore E James, to Professor Karl Pearson, Fellow of the Royal Society, Hampden Farm House, Great Missenden, Buckinghamshire19 September 1899
NLB/19/349Copy letter from Theodore E James, to Professor Karl Pearson, Fellow of the Royal Society21 August 1899
NLB/18/613Copy letter from Arthur William Rucker, to [Professor Karl] Pearson11 April 1899
NLB/60/594Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor Karl Pearson, FRS28 February 1921
NLB/23/2/431Copy letter sent from Archibald Geikie, to Professor Karl Pearson, Fellow of the Royal SocietyJanuary 1904
NLB/20/484Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society2 May 1900
NLB/20/346Copy letter from Robert William Frederick Harrison, to Professor George Howard Darwin, Fellow of the Royal Society30 March 1900
NLB/19/667Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society21 November 1899
NLB/40/48Copy letter from Robert William Frederick Harrison to Professor Karl Pearson FRS30 March 1909
NLB/19/813Copy letter from Robert William Frederick Harrison, to Mr W Dawson, Messrs C & E Layton, 56 Farringdon Street, E.C.1 January 1900
NLB/20/664Copy letter from Arthur William Rucker, to Professor Karl Pearson, Fellow of the Royal Society14 June 1900
NLB/20/580Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society24 May 1900
NLB/20/18Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society15 January 1900
NLB/20/349Copy letter from Arthur William Rucker, to Professor Karl Pearson, Fellow of the Royal Society30 March 1900
NLB/25/461Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society7 November 1902
NLB/20/141Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society12 February 1900
NLB/20/123Copy letter from Arthur William Rucker, to Andrew Russell Forsyth, [Fellow of the Royal Society]7 February 1900
NLB/20/309Copy letter from Robert William Frederick Harrison, to Professor George Howard Darwin, [Fellow of the Royal Society]20 March 1900
NLB/20/213Copy letter from Robert William Frederick Harrison, to Professor Olaus Magnus Friedrich Erdmann Henrici, [Fellow of the Royal Society]26 February 1900
NLB/20/361Copy letter from Arthur William Rucker, to Karl Pearson, Fellow of the Royal Society2 April 1900
NLB/20/538Copy letter from Robert William Frederick Harrison, to Professor Walter Frank Raphael Weldon, Fellow of the Royal Society17 May 1900
NLB/20/283Copy letter from Sir Arthur William Rucker, to Professor Karl Pearson, Fellow of the Royal Society12 March 1900
NLB/19/450Copy letter from Robert William Frederick Harrison, to Professor Forsyth5 October 1899
NLB/20/483Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society3 May 1900
NLB/21/128Copy letter from an unknown correspondent, to Messrs Harrison & Sons10 August 1900
NLB/22/27Copy letter from Sir Michael Foster, to Professor [Karl] Pearson, Fellow of the Royal Society14 February 1901
NLB/20/611Copy letter from Robert William Frederick Harrison, to Professor George Carey Foster, [Fellow of the Royal Society]31 May 1900
NLB/20/673Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society15 June 1900
AP/74/10/2Unpublished letter, regarding 'On the kinetic accumulation of stress, illustrated by the theory of impulsive torsion' from Karl Pearson to unknown recipient13 November 1900
NLB/21/56Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society23 July 1900
NLB/21/55Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society 20 July 1900
NLB/21/346Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society2 November 1900
NLB/22/639Copy letter from Robert William Frederick Harrison, to Professor [Karl] Pearson, Fellow of the Royal Society19 June 1901
NLB/22/523Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society29 May 1901
NLB/21/569Copy letter from Arthur William Rucker, to Dr Alice Lee and Professor Karl Pearson, [Fellow of the Royal Society]11 December 1900
NLB/21/395Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society12 November 1900
NLB/22/333Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society25 April 1901
NLB/22/431Copy letter from Arthur [William] Rucker, to Professor [Karl] Pearson, Fellow of the Royal Society[May 1901]
NLB/21/571Copy letter from Arthur William Rucker, to Professor Karl Pearson, Fellow of the Royal Society11 December 1900
NLB/23/2/185Copy letter from unknown correspondent, to The Editors 'Biometrika' (Professor Walter Frank Raphael Weldon, Fellow of the Royal Society and Karl Pearson, Fellow of the Royal Society)9 April 1902
NLB/23/2/126Copy letter from Arthur William Rucker, to Professor Karl Pearson, [Fellow of the Royal Society]4 November 1901
NLB/18/428Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society9 March 1899
NLB/23/1/348Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society29 October 1901
NLB/23/1/654Copy letter from Joseph Larmor, to Professor Karl Pearson, Fellow of the Royal Society20 December 1901
NLB/24/50Copy letter from Joseph Larmor, to Professor Karl Pearson, Fellow of the Royal Society 20 February 1902
NLB/24/29Copy letter from Joseph Larmor, to Professor Karl Pearson, [Fellow of the Royal Society]17 February 1902
NLB/24/49Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society21 February 1902
NLB/23/1/760Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society17 January 1902
NLB/23/1/858Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society6 February 1902
NLB/29/136Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society11 July 1904
NLB/25/406Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society31 October 1902
NLB/24/719Copy letter from Joseph Larmor, to Professor Karl Pearson, [Fellow of the Royal Society]23 June 1902
NLB/43/154Copy letter from Joseph Larmor, to Professor Karl Pearson, Fellow of the Royal Society12 November 1910
NLB/26/44Copy letter from Robert William Frederick Harrison to, Professor Karl Pearson, Fellow of the Royal Society, 7 Well Road, Hampstead, N.W.20 January 1903
RR/13/242Referee's report by Richard Strachey, on a paper 'On the distribution of frequency (variation and correlation) of the barometric height at divers stations' by Karl Pearson and Alice Lee1 July 1897
RR/18/66Referee's report by Frank Watson Dyson, on a paper 'On the improbability of a random distribution of the stars in space' by Karl PearsonApril 1910
NLB/27/524Copy letter from Joseph Larmor, to Karl Pearson, [Fellow of the Royal Society]15 October 1903
NLB/28/74Copy letter from Robert William Frederick Harrison, to Professor Augustus Edward Hough Love, Fellow of the Royal Society5 January 1904
NLB/28/54Copy letter from Robert William Frederick Harrison, to Professor Augustus Edward Howe Love, Fellow of the Royal Society24 December 1903
NLB/27/739Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society24 November 1903
NLB/27/751Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, [Fellow of the Royal Society]24 November 1903
NLB/29/193Copy letter from Theodore E James, to Professor Karl Pearson, Fellow of the Royal Society, Clements Field, Cogges, near Witney, Oxon27 July 1904
NLB/41/201Copy letter from Joseph Larmor, to Professor Karl Pearson, Fellow of the Royal Society30 October 1909
NLB/33/4Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society14 June 1906
NLB/31/46Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society15 June 1905
NLB/43/152Copy letter from Joseph Larmor, to Professor Karl Pearson, Fellow of the Royal Society12 November 1910
NLB/28/877Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society8 June 1904
NLB/32/738Copy letter from Archibald Geikie, to Professor Karl Pearson, 7 Well Road, Hampstead, N.W.18 May 1906
RR/13/244Second referee's report by Richard Strachey, on a paper 'On the distribution of frequency (variation and correlation) of the barometric height at divers stations' by Karl Pearson and Alice Lee8 July 1897
MC/21/502Letter from Ernest G Pope, Adirondack Cottage Sanitarium, Sabanac Lake, [New York], to the Assistant Secretary of the Royal Society, London23 April 1906
MC/21/486Letter from Karl Pearson, 7 Well Road, Hampstead, to the Royal Society13 May 1906
NLB/40/191Copy letter from Robert William Frederick Harrison to Professor [Karl] Pearson30 April 1909
NLB/34/169Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society, University College, Gower Street, W.C.8 December 1906
NLB/40/21Copy letter from Robert William Frederick Harrison to Professor Karl Pearson FRS 24 March 1909
NLB/37/890Copy Letter from Robert William Frederick Harrison to Professor [Joseph] Larmor, Secretary of the Royal Society29 May 1908
NLB/39/230Copy letter from Robert William Frederick Harrison to Messrs Friedländer & Sohn14 December 1908
NLB/40/217Copy letter from Robert William Frederick Harrison to Professor Karl Pearson FRS4 May 1909
NLB/40/132Copy letter from Robert William Frederick Harrison to Professor Karl Pearson FRS 22 April 1909
NLB/45/232Copy letter from Robert William Frederick Harrison to Professor Karl Pearson FRS23 January 1912
NLB/43/429Copy letter from Joseph Larmor, to Professor Karl Pearson, Fellow of the Royal Society10 January 1911
NLB/42/163Copy letter from Robert William Frederick Harrison to Sir Joseph Larmor, Sec RS 15 April 1910
NLB/43/720Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society18 March 1911
NLB/43/659Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society6 March 1911
NLB/45/127Copy letter from Robert William Frederick Harrison to Professor Karl Pearson FRS3 January 1912
NLB/45/422Copy letter from Robert William Frederick Harrison to Professor Karl Pearson FRS2 March 1912
NLB/46/648Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society9 October 1912
NLB/48/294Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society12 June 1913
NLB/52/212Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor Karl Pearson, FRS15 October 1915
NLB/55/583Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to [Professor] Karl Pearson, FRS18 June 1918
NLB/59/560Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Professor Karl Pearson, FRS18 October 1920
RR/18/67Referee's report by William Huggins, on a paper 'On the improbability of a random distribution of the stars in space' by Karl PearsonApril 1910
RR/21/2Referee's report by Karl Pearson, on a paper 'Experiments on inheritance in parthenogenesis' by Wilfred Eade Agar[July 1914]
RR/23/70Referee's report by Alfred North Whitehead, on a paper 'Mathematical contributions to the theory of evolution XIX. Second supplement to a memoir on skew variation' by Karl PearsonFebruary 1916
NLB/53/59Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor Karl Pearson, FRS29 March 1916
NLB/60/524Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor Karl Pearson, FRS18 February 1921
NLB/56/425Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, President of the Royal Society10 February 1919
NLB/56/498Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to the Provost of University College25 February 1919
NLB/63/124Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor Karl Pearson, FRS01 July 1922
NLB/56/737Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor Karl Pearson, FRS14 May 1919
RR/34/29Referee's report by George Udny Yule, on a paper 'Researches on the mode of distribution of the constants of samples taken at random from a bivariate normal population' by Karl Pearson26 May 1926
RR/23/26Referee's report by Karl Pearson, on a paper 'Correlation between relatives on the supposition of mendelian inheritance' by R A FisherJuly 1916
RR/13/95Referee's report by George Howard Darwin, on a paper 'Mathematical contributions to the theory of evolution.—III. Regression, heredity, and panmixia' by Karl Pearson27 October 1895
RR/12/12Referee's report by Francis Galton, on a paper 'Contributions to the mathematical theory of evolution' by Karl Pearson22 November 1893
RR/13/95bisReferee's report by Francis Galton, on a paper 'Mathematical contributions to the theory of evolution. On telegony in man' by Karl Pearson27 September 1896
NLB/60/455Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor Karl Pearson, FRS9 February 1921
NLB/59/437Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Professor Karl Pearson, FRS4 October 1920
RR/12/369Referee's report by Francis Galton, on a paper [attributed] 'Contributions to the mathematical theory of evolution.—II. Skew variation in homogeneous material' by Karl Pearson1 January 1895
NLB/59/131Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Professor Karl Pearson, FRS20 July 1920
RR/12/205Referee's report by George Howard Darwin, on a paper 'Contributions to the mathematical theory of evolution.—II. Skew variation in homogeneous material' by Karl Pearson28 December 1894
NLB/57/588Copy letter from Sir William Bate Hardy, Secretary of the Royal Society; to Professor [Karl] Pearson, FRS9 December 1919
NLB/59/196Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Professor Karl Pearson, FRS26 July 1920
RR/13/245Referee's report by Arthur Schuster, on a paper 'On the distribution of frequency (variation and correlation) of the barometric height at divers stations' by Karl Pearson and Alice LeeJuly 1897
RR/14/158Referee's report by Karl Pearson, on a paper 'Experimental researches on the deflections of bent beams' by Louis Napoleon George Filonnd [October 1899]
RR/14/83Referee's report by George Howard Darwin, on a paper 'Mathematical contributions to the theory of evolution. —VI. Genetic (reproductive) selection: Inheritance of fertility in man, and of fecundity in thoroughbred racehorses' by Karl Pearson4 December 1898
RR/13/241Referee's report by George Howard Darwin, on a paper 'On the distribution of frequency (variation and correlation) of the barometric height at divers stations' by Karl Pearson and Alice Lee28 June 1897
RR/13/94Referee's report by Francis Galton, on a paper 'Mathematical contributions to the theory of evolution.—III. Regression, heredity, and panmixia' by Karl Pearson8 October 1895
RR/13/96Letter from Karl Pearson, on his paper 'Mathematical contributions to the theory of evolution. On telegony in man' to Francis Galton2 October 1896
AP/74/10Unpublished paper, 'On the kinetic accumulation of stress, illustrated by the theory of impulsive torsion' by Karl Pearson1900
RR/13/266Referee's report by Karl Pearson, on a paper 'On the geometrical treatment of the 'normal curve' of statistics, with especial reference to correlation and to the theory of error' by W F SheppardOctober 1897
RR/14/220Letter from Oliver Heaviside, to Robert Harrison, regarding a paper 'On the vibrations in the field round a theoretical hertzian oscillator' by Karl Pearson and Alice Lee26 March 1899
RR/13/248Letter from Karl Pearson, on his paper with Louis Nepoleon George Filon 'Mathematical contributions to the theory of evolution.— IV. On the probable errors of frequency constants and on the influence of random selection on variation and correlation' to the Secretary of the Royal Society23 October 1897
RR/13/254Referee's report by Augustus Edward Hough Love, on a paper 'Mathematical contributions to the theory of evolution.— IV. On the probable errors of frequency constants and on the influence of random selection on variation and correlation' by Karl Pearson and Louis Napoleon George Filon23 February 1898
RR/13/243Memorandum by George Howard Darwin, on Richard Strachey's report on a paper 'On the distribution of frequency (variation and correlation) of the barometric height at divers stations' by Karl Pearson and Alice Lee2 July 1897
RR/13/252Referee's report by Olaus Magnus Friedrich Erdmann Henrici, on a paper 'Mathematical contributions to the theory of evolution.— IV. On the probable errors of frequency constants and on the influence of random selection on variation and correlation' by Karl Pearson and Louis Napoleon George Filon12 February 1898
RR/23/71Referee's report by Arthur Schuster, on a paper 'Mathematical contributions to the theory of evolution XIX. Second supplement to a memoir on skew variation' by Karl Pearson1916
RR/14/80Referee's report by Francis Galton, on a paper 'Mathematical contributions to the theory of evolution.—V. On the reconstruction of the stature of prehistoric races' by Karl Pearson14 July 1898
NLB/60/158Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Karl] Pearson, FRS16 December 1920
NLB/63/368Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Karl] Pearson, FRS02 October 1922
RR/14/217Referee's report by George Francis Fitzgerald, on a paper 'On the vibrations in the field round a theoretical hertzian oscillator' by Karl Pearson and Alice Lee11 February 1899
RR/14/218Referee's report by Oliver Heaviside, on a paper 'On the vibrations in the field round a theoretical hertzian oscillator' by Karl Pearson and Alice Lee28 February 1899
RR/14/215Referee's report by Francis Galton, on a paper 'Mathematical contributions to the theory of evolution. —VII. On the correlation of characters not quantitatively measurable' by Karl Pearson12 September 1899
NLB/62/900Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Karl] Pearson, FRS31 May 1922
RR/14/159Detailed referee's report by Karl Pearson, on a paper 'Experimental researches on the deflections of bent beams' by Louis Napoleon George Filonnd [1899]
RR/15/370Referee's report by William Burnside, on a paper 'Mathematical contributions to the theory of evolution. XI. On the influence of natural selection on the variability and correlation of organs' by Karl PearsonFebruary 1902
RR/25/12Referee's report by Karl Pearson, on a paper 'On certain independent factors in mental measurements' by J C Maxwell Garnett25 September 1918
NLB/62/187Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor Karl Pearson, FRS20 December 1921
NLB/57/535Copy letter from Sir William Bate Hardy, Secretary of the Royal Society; to Professor [Karl] Pearson, FRS28 November 1919
NLB/64/342Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Karl] Pearson, FRS19 March 1923
NLB/57/633Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Frank [Watson] Dyson, FRS19 December 1919
NLB/57/623Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor Karl Pearson, FRS17 December 1919
NLB/68/511Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor Karl Pearson, FRS23 July 1925
NLB/62/390Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Karl] Pearson, FRS6 February 1922
NLB/63/329Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Karl] Pearson, FRS19 September 1922
NLB/62/381Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Karl] Pearson, FRS2 February 1922
NLB/67/341Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor Karl Pearson, FRS6 December 1924
NLB/64/338Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Karl] Pearson, FRS17 March 1923
NLB/67/365Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor Karl Pearson, FRS9 December 1924
NLB/63/799Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Karl] Pearson, FRS20 December 1922
NLB/64/587Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Karl] Pearson, FRS08 May 1923
NLB/65/790Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Karl] Pearson, FRS2 January 1924
NLB/69/419Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Prof. Karl Pearson, FRS30 March 1926
NLB/66/429Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof. Karl Pearson, FRS7 May 1924
NLB/69/272Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof. Karl Pearson, FRS19 February 1926
NLB/70/690Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor Karl Pearson, FRS5 July 1927
NLB/69/509Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof. [Karl] Pearson, FRS19 May 1926
NLB/70/169Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor Karl Pearson, FRS21 January 1927
NLB/70/184Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor Karl Pearson, FRS26 January 1927
NLB/69/392Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Prof. Karl Pearson, FRS25 March 1926
NLB/69/623Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Karl Pearson FRS29 June 1926
NLB/71/648Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof. [Karl] Pearson, FRS21 September 1928
NLB/72/360Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor Karl Pearson, FRS2 August 1929
NLB/71/823Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Karl Pearson, FRS9 November 1928
MM/17/69Letter from Karl Pearson [to Robert Harrison]16 November 1900
IM/003473Pearson, Karlnd
MM/17/64Letter from Karl Pearson [to Robert Harrison]10 March 1900
MM/17/51Letter from Karl Pearson to Lord Rayleigh, Secretary, Royal Society28 January 1895
MM/17/61Letter from Karl Pearson [to Robert Harrison]20 November 1899
NLB/22/543Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society31 May 1901
NLB/38/625Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society13 October 1908
NLB/14/72Copy letter from Robert William Frederick Harrison, to Professor George Howard Darwin, Fellow of the Royal Society22 December 1896
AP/74/10/1Unpublished manuscript, 'On the kinetic accumulation of stress, illustrated by the theory of impulsive torsion' by Karl Pearson1900
RR/15/101Referee's report by George Howard Darwin, on a paper 'Mathematical contributions to the theory of evolution. IX. On the principle of homotyposis and its relation to heredity. Part I. Homotyposis in the vegetable kingdom' by Karl Pearson15 December 1900
RR/15/78Referee's report by George Henry Darwin, on a paper 'Data for the problem of evolution in man VI. A first study of the correlation of the human skull' by Alice Lee and Karl Pearson15 August 1900
NLB/14/117Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society7 January 1897
NLB/15/556Copy letter from Robert William Frederick Harrison, to Professor Andrew Russell Forsyth, Fellow of the Royal Society28 October 1897
NLB/15/604Copy letter from Arthur William Rucker, to Dr Ernest William Hobson, Fellow of the Royal Society3 November 1897
NLB/17/254Copy letter from Robert William Frederick Harrison, to Professor Arthur William Rucker, Secretary, Royal Society22 September 1898
NLB/17/265Copy letter from Robert William Frederick Harrison, to Professor Arthur William Rucker, Secretary, Royal Society26 September 1898
NLB/19/873Copy letter from Robert William Frederick Harrison, to Professor Andrew Russell Forsyth, Fellow of the Royal Society10 January 1900
NLB/19/821Copy letter from Robert William Frederick Harrison, to Professor Arthur William Rucker, Secretary, Royal Society, Basset Down House, Swindon3 January 1900
NLB/19/855Copy letter from Robert William Frederick Harrison, to Professor Andrew Russell Forsyth, Fellow of the Royal Society8 January 1900
NLB/20/96Copy letter from Robert William Frederick Harrison, to Professor Andrew Russell Forysth, Fellow of the Royal Society31 January 1900
NLB/20/314Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society20 March 1900
NLB/20/575Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society23 May 1900
NLB/21/46Copy letter from Robert William Frederick Harrison, to Professor Andrew Russell Forsyth, Fellow of the Royal Society20 June 1900
NLB/22/156Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society13 March 1901
NLB/21/289Copy letter from an unknown correspondent, to Dr Alice Lee and Professor Karl Pearson, Fellow of the Royal Society21 October 1900
NLB/21/397Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society13 November 1900
NLB/23/2/213Copy letter from Joseph Larmor, to Professor Karl Pearson, Fellow of the Royal Society20 June 1902
NLB/23/1/438Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society12 November 1901
NLB/62/131Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Karl] Pearson, FRS8 December 1921
NLB/57/839Copy letter from Sir William Bate Hardy, FRS, Secretary of the Royal Society; to Professor Karl Pearson, FRS19 February 1920
RR/14/81Referee's report by George Howard Darwin, on a paper 'Mathematical contributions to the theory of evolution.—V. On the reconstruction of the stature of prehistoric races' by Karl Pearson1 August 1898
MM/17/52Letter from Karl Pearson to Herbert Rix, Assistant Secretary, Royal Society10 February 1895
RR/15/369Referee's report by William Thomas Blanford, on a paper 'Mathematical contributions to the theory of evolution. XI. On the influence of natural selection on the variability and correlation of organs' by Karl Pearson13 February 1902
NLB/16/74Copy letter from Robert William Frederick Harrison, to Professor Henrici, Fellow of the Royal Society26 January 1898
NLB/17/413Copy letter from Artur William Rucker, to Karl Pearson, [Fellow of the Royal Society]25 October 1898
NLB/19/413Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society, Hampden Farm House, Great Missenden, Buckinghamshire26 September 1899
NLB/19/424Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society, 7 Well Road, Hampstead, N.W.29 September 1899
NLB/20/470Copy letter from Robert William Frederick Harrison, to William Abbott Herdman, Fellow of the Royal Society30 April 1900
RR/15/98Referee's report by John William Strutt, Lord Rayleigh, on a paper 'The kinetic accumulation of stress, illustrated by the theory of impulsive torsion' by Karl PearsonJuly 1900
NLB/21/737Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society21 January 1901
NLB/32/508Copy letter from Joseph Larmor, to Karl Pearson, [Fellow of the Royal Society]22 March 1906
NLB/51/264Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society to Professor Karl Pearson FRS27 January 1915
NLB/59New Letter Book volume 59, copy letters sent from Royal Society administration9 July 1920-2 December 1920
NLB/57New Letter Book volume 57, copy letters sent from Royal Society administration27 June 1919-27 February 1920
RR/13/255Referee's report by Edwin Bailey Elliott, on a paper 'Mathematical contributions to the theory of evolution.— IV. On the probable errors of frequency constants and on the influence of random selection on variation and correlation' by Karl Pearson and Louis Napoleon George Filon18 February 1898
RR/13/251Letter from Robert Harrison, Assistant Secretary of the Royal Society on a paper 'Mathematical contributions to the theory of evolution.— IV. On the probable errors of frequency constants and on the influence of random selection on variation and correlation' by Karl Pearson and Louis Napoleon George Filon to Olaus Magnus Friedrich Erdmann Henrici26 January 1898
RR/14/82Referee's report by Francis Galton, on a paper 'Mathematical contributions to the theory of evolution. —VI. Genetic (reproductive) selection: Inheritance of fertility in man, and of fecundity in thoroughbred racehorses' by Karl Pearson23 November 1898
RR/14/79Referee's report by Walter Frank Raphael Weldon, on a paper 'Mathematical contributions to the theory of evolution.—V. On the reconstruction of the stature of prehistoric races' by Karl Pearson10 July 1898
RR/15/99Referee's report by William Cawthorne Unwin, on a paper 'The kinetic accumulation of stress, illustrated by the theory of impulsive torsion' by Karl Pearson2 August 1900
RR/15/225Referee's report by William Napier Shaw, on a paper 'The mathematical theory of errors of judgement with especial reference to the personal equation' by Karl Pearson3 June 1901
RR/13/246Referee's report by the Mathematics Committee, on a paper 'On the distribution of frequency (variation and correlation) of the barometric height at divers stations' by Karl Pearson and Alice Lee3 August 1897
RR/14/219Letter from Karl Pearson, to Arthur William Rucker, regarding a paper 'On the vibrations in the field round a theoretical hertzian oscillator' by Karl Pearson and Alice Lee11 March 1899
MC/21/485Letter from Karl Pearson, 7 Well Road, Hampstead, to [Joseph] Larmor12 May 1906
AP/77/2Unpublished paper, 'A biometrical study of conjugation in Paramaecium [Paramecium]' by Raymond Pearl1905
RR/15/94Referee's report by George Howard Darwin, on a paper 'Mathematical contributions to the theory of evolution VIII. On the correlation of characters not quantitatively measurable' by Karl Pearson18 February 1900
RR/15/96Referee's report by Walter Frank Raphael Weldon, on a paper 'Mathematical contributions to the theory of evolution VIII. On the correlation of characters not quantitatively measurable' by Karl PearsonApril 1900
RR/15/100Referee's report by William Bateson, on a paper 'Mathematical contributions to the theory of evolution. IX. On the principle of homotyposis and its relation to heredity. Part I. Homotyposis in the vegetable kingdom' by Karl Pearson15 November 1900
RR/12/11Referee's report by George Howard Darwin, on a paper 'Contributions to the mathematical theory of evolution' by Karl Pearson9 November 1893
RR/13/160Letter from George Howard Darwin, on a paper 'On the significance of Bravais' formulæ for regression, in the case of skew correlation' by George Udny Yule to Karl Pearson21 December 1896
RR/13/161Letter from Karl Pearson, on a paper 'On the significance of Bravais' formulæ for regression, in the case of skew correlation' by George Udny Yule to George Howard Darwin27 December 1896
RR/13/247Letter from Karl Pearson, on his paper with Alice Lee 'On the distribution of frequency (variation and correlation) of the barometric height at divers stations' to the Chairman of the Mathematical Committee24 August 1897
RR/13/249Referee's report by Percy Alexander MacMahon, on a paper 'Mathematical contributions to the theory of evolution.— IV. On the probable errors of frequency constants and on the influence of random selection on variation and correlation' by Karl Pearson and Louis Napoleon George Filon9 December 1897
RR/13/250Referee's report by George Howard Darwin, on a paper 'Mathematical contributions to the theory of evolution.— IV. On the probable errors of frequency constants and on the influence of random selection on variation and correlation' by Karl Pearson and Louis Napoleon George Filon2 January 1898
RR/13/253Referee's report by Micaiah John Muller Hill, on a paper 'Mathematical contributions to the theory of evolution.— IV. On the probable errors of frequency constants and on the influence of random selection on variation and correlation' by Karl Pearson and Louis Napoleon George Filon17 February 1898
RR/13/271Referee's report by the Mathematical Committee, on a paper 'On the geometrical treatment of the 'normal curve' of statistics, with especial reference to correlation and to the theory of error' by W F Sheppard 1897
RR/14/216Referee's report by George Howard Darwin, on a paper 'Mathematical contributions to the theory of evolution. —VII. On the correlation of characters not quantitatively measurable' by Karl Pearson25 September 1899
RR/15/97Referee's report by Augustus Edward Hough Love, on a paper 'The kinetic accumulation of stress, illustrated by the theory of impulsive torsion' by Karl Pearson12 July 1900
RR/15/313Referee's report by William Napier Shaw, on a paper 'On the correlation between barometric height' by F E Cave-Browne-Cave and Karl Pearson9 June 1902
RR/16/415Referee's report by Karl Pearson, on two papers 'On a property which holds good for all groupings of a normal distribution of frequency for two variables, with applications to the study of contingency-tables for the inheritance of unmeasured qualities' and 'On the influence of bias and of personal equation in statistics of ill-defined qualities: An experimental study' by George Udny Yule10 December 1905
NLB/16/724Copy letter from Arthur William Rucker, to Professor [Karl] Pearson, Fellow of the Royal Society26 May 1898
MC/19/674Letter from Karl Pearson, Clements Field, Cogges, Oxon, to [Joseph] Larmor23 July 1904
MC/19/671Letter from Karl Pearson, 7 Well Road, Hampstead, to the Royal Society3 March 1904
MC/19/672Letter from Karl Pearson, Clements Field, Oxon, to the Royal Society14 July 1904
MC/17Volume 17 of miscellaneous correspondence regarding business matters, sent to the Royal Society1897-1899
MC/25/176Letter from Karl Pearson, Biometric Laboratory, University College, Gower Street, London, W.C14 February 1910
MC/25/177Letter from Karl Pearson, 7 Well Road, Hampstead N.W, to the [Royal Society]16 April 1910
MC/26/139Letter from Sidney Lee, Dictionary of National Biography, 15 Waterloo Place, S.W, to Sir Joseph [Larmor]20 October 1911
MC/26/194Letter from Karl Pearson, Biometric Laboratory, University College, Gower Street, London, W.C, to the [Royal Society]2 May 1911
MC/26/193Letter from Karl Pearson, 7 Well Road, Hamsptead, N.W, to the [Royal Society]2 April 1911
MC/26/195Letter from Karl Pearson, 7 Well Road, Hamsptead, N.W, to the [Royal Society]8 December 1911
MC/21Volume 21 of miscellaneous correspondence regarding business matters, sent to the Royal Society1906
MC/27/265Letter from Karl Pearson, University College, London, W.C, to the [Royal Society]10 January 1912
MC/27/266Letter from Karl Pearson, University College, London, W.C, to [John] Rose Bradford, [Royal Society]17 January 1912
NLB/45/197Copy letter from Robert William Frederick Harrison to Prof Karl Pearson FRS18 January 1912
MC/28/209Letter from Karl Pearson, 7 Well Road, Hampstead, N.W, to The Assistant Secretary, Royal Society25 October 1913
MC/28/210Letter from Karl Pearson, 7 Well Road, Hampstead, N.W, to Mr [Robert] Harrison, [Royal Society]16 November 1913
MC/19Volume 19 of miscellaneous correspondence regarding business matters, sent to the Royal Society1904
MC/21/487Letter from Karl Pearson, 7 Well Road, Hampstead, to [Joseph] Larmor14 May 1906
NLB/32/725Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society17 May 1906
MC/21/488Letter from Karl Pearson, 7 Well Road, Hampstead, to Sir Archibald Geikie19 May 1906
MC/21/489Letter from Karl Pearson, 7 Well Road, Hampstead, to the Assistant Secretary of the Royal Society28 May 1906
MC/21/490Letter from Karl Pearson, 7 Well Road, Hampstead, to Lord Rayleigh18 June 1906
MC/21/491Letter from Karl Pearson, 7 Well Road, Hampstead, to Lord Rayleigh26 June 1906
MC/22/313Letter from Karls Pearson, Sussex, to the Royal Society[July 1907]
MC/22Volume 22 of miscellaneous correspondence regarding business matters, sent to the Royal Society1907
MC/35Volume 35 of miscellaneous correspondence regarding business matters, sent to the Royal Society1921
MC/34/144Letter from Karl Pearson, 7 Well Road, Hampstead, N.W.3., to Mr [Robert] Harrison, [Royal Society]29 March 1919
MC/38Volume 38 of miscellaneous correspondence regarding business matters, sent to the Royal Society1924
MC/35/115Letter from Karl Pearson, Department of Applied Statistics, University of London, University College, to the Librarian of the Royal Society7 December 1921
MC/35/116Letter from Karl Pearson, Department of Applied Statistics, University of London, University College, to the Royal Society17 December 1921
MC/36Volume 36 of miscellaneous correspondence regarding business matters, sent to the Royal Society1922
MC/37/102Letter from Karl Pearson, Department of Applied Statistics, University of London, University College, to The Assistant ecretary, Royal Society, Burlington House, W26 December 1923
MC/37/103Letter from Karl Pearson, Department of Applied Statistics, University of London, University College, to The Assistant ecretary, Royal Society, Burlington House, W.115 March 1923
MC/36/73Letter from Karl Pearson, Department of Applied Statistics, University of London, University College, to the Assistant Secretary of the Royal Society, Burlington House31 January 1922
MC/36/74Letter from Karl Pearson, Galton Laboratory, University College, London, to the Assistant Secretary of the Royal Society, Burlington House3 February 1922
MC/36/75Letter from Karl Pearson, 7 Well Road, Hampstead, to the Royal Society7 February 1922
MC/36/76Postcard from Karl Pearson, to the Assistant Secretary of the Royal Society, Burlington House, Piccadilly, London[September 1922]
MC/36/77Letter from Karl Pearson, Department of Applied Statistics, University of London, University College, to the Assistant Secretary of the Royal society, Piccadilly19 December 1922
MC/38/84Letter from Karl Pearson, Department of Applied Statistics, University of London, University College, to [Francis Alexander] Towle, The Royal Society, Burlington House, Piccadilly4 December 1924
MC/38/85Letter from Karl Pearson, Department of Applied Statistics, University of London, University College, to [Francis Alexander] Towle, Assistant Secretary of the Royal Society7 December 1924
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