| Reference number | Title | Date |
| NLB/64/561 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to [George] Udny Yule Esq., FRS, St. John's College, Cambridge | 03 May 1923 |
| MDA/A/26/13/5 | Letter from G Udny Yule, St John's College, Cambridge, to A V Hill | 9 September 1941 |
| IM/005044 | Yule, George Udny | nd |
| NLB/8/24 | Copy letter from an unknown correspondent, to Messrs Harrison & Sons | 1 July 1893 |
| NLB/11/100 | Copy letter from Herbert Rix, to George Udny Yule, [Fellow of the Royal Society], 40 Argyll Road | 20 April 1895 |
| NLB/14/119 | Copy letter from Arthur William Rucker, to George Udny Yule, [Fellow of the Royal Society], University College, London | 7 January 1896 |
| RR/15/139 | Referee's report by Olaus Magnus Friedrich Erdmann Henrici, on a paper 'The association of attributes in statistics, with examples from the material of the Childhood Society, etc' on a paper by George Udny Yule | 8 January 1900 |
| RR/15/291 | Referee's report by George Ballard Mathews, on a paper 'On the theory of consistence of logical class-frequency and its geometrical representation' by George Udny Yule | March 1901 |
| RR/15/9 | Referee'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 Pearson | 22 May 1900 |
| RR/16/412 | Referee's report by Alfred North Whitehead, on a paper ,'A property which holds good for all groupings of a normal distribution and frequency for two variables, with applications to the study of contingency-tables for the inheritance of unmeasured quantities' by George Udny Yule | November 1906 |
| RR/15/138 | Referee's report by Walter Frank Raphael Weldon, on a paper 'The association of attributes in statistics, with examples from the material of the Childhood Society, etc' on a paper by George Udny Yule | December 1899 |
| RR/16/414 | Referee's report by William Davidson Niven, on an unnamed paper by George Udny Yule | January 1906 |
| RR/16/410 | Referee's report by George Ballard Mathews, on a paper 'The influence of bias of personal equation in statistics of ill-defined qualities: an experimental study' by George Udny Yule | December 1905 |
| RR/16/417 | Referee's report by William Davidson Niven, 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 Udney Yule | 18 December 1905 |
| RR/16/411 | Referee's report by William Davidson Niven, on a paper 'A property which holds good for all groupings of a normal distribution and frequency for two variables, with applications to the study of contingency-tables for the inheritance of unmeasured quantities' by George Udny Yule | January 1906 |
| NLB/22/192 | Copy letter from Robert William Frederick Harrison, to [George Udny] Yule, Fellow of the Royal Society, 43 Heathhurst Road, Hampstead, N.W. | 20 March 1901 |
| NLB/20/1 | Copy letter from Robert William Frederick Harrison, to George Udny Yule, [Fellow of the Royal Society], City and Guilds Institute, Exhibition Road, S.W. | 11 January 1900 |
| NLB/23/2/101 | Copy letter from Arthur William Rucker, to George Udny Yule, 43 Heathhurst Road, Hampstead, N.W. | 25 June 1901 |
| NLB/20/17 | Copy letter from Robert William Frederick Harrison, to George Udny Yule, [Fellow of the Royal Society], City & Guilds Institute, Exhibition Road, S.W. | 15 January 1900 |
| NLB/20/580 | Copy letter from Robert William Frederick Harrison, to Professor William Abbott Herdman, Fellow of the Royal Society | 24 May 1900 |
| NLB/20/28 | Copy letter from Robert William Frederick Harrison, to George Udny Yule, [Fellow of the Royal Society], 43 Heathhurst Road, Hampstead, N.W. | 17 January 1900 |
| NLB/20/538 | Copy letter from Robert William Frederick Harrison, to Professor Walter Frank Raphael Weldon, Fellow of the Royal Society | 17 May 1900 |
| NLB/20/369 | Copy letter from Robert William Frederick Harrison, to George Udny Yule, 43 Heathhurst Road, Hampstead, N.W. | 3 April 1900 |
| NLB/21/128 | Copy letter from an unknown correspondent, to Messrs Harrison & Sons | 10 August 1900 |
| NLB/21/568 | Copy letter from Arthur William Rucker, to George Udny Yule, [Fellow of the Royal Society], Examination Department, City & Guilds Institute, Exhibition Road, S.W. | 11 December 1900 |
| NLB/32/536 | Copy letter from Robert William Frederick Harrison, to George Udny Yule, 50 St James Court, Buckingham Gate, S.W. | 28 March 1906 |
| NLB/32/51 | Copy letter from Joseph Larmor, to Sir William Niven, [Fellow of the Royal Society] | 17 December 1905 |
| NLB/32/184 | Copy letter from Robert William Frederick Harrison, to George Udny Yule, 50 St James' Court, Buckingham Gate, S.W. | 22 January 1906 |
| RR/29/79 | Referee's report by Godfrey Harold Hardy, on a paper 'A mathematical theory of evolution, based on the conclusions of Dr. J. C. Willis' by George Udny Yule | December 1923 |
| RR/34/29 | Referee'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 Pearson | 26 May 1926 |
| RR/35/75 | Referee's report by George Udny Yule, on a paper 'Triplet children in Great Britain and Ireland' by Ronald Aylmer Fisher | 31 October 1927 |
| RR/38/13 | Referee's report by George Udny Yule, on a paper 'The general sampling distribution of the multiple correlation coefficient' by R A Fisher | 30 August 1928 |
| RR/36/86 | Referee's report by George Udny Yule, on a paper 'The error of determination of toxicity' by John William Trevan | 2 April 1927 |
| RR/13/162 | Referee's report by George Howard Darwin, on a paper 'On the significance of Bravais' formulæ for regression, in the case of skew correlation' by George Udny Yule | 7 January 1897 |
| RR/41/88 | Referee's report by George Udny Yule, on a paper 'The moments of the distribution for normal samples of measures of departure from normality' by R A Fisher | 22 September 1930 |
| RR/35/131 | Referee's report by George Udny Yule, on a paper 'A contribution to the mathematical theory of epidemics' by William Ogilvy Kermack and A G McKendrick | May 1927 |
| RR/17/239 | Referee's report by William Burnside, on a paper 'On the theory of correlation for any number of variables, treated by a new system of notation' by George Udny Yule | [February 1907] |
| RR/32/74 | Referee's report by George Udny Yule, on a paper 'A critical statistical study of experimental data on the effect of minute electric currents on the growth rate of the coleoptile of barley' by F G Gregory and L Batten | 9 August 1925 |
| RR/47/53 | Referee's report by George Udny Yule, on a paper 'On the evidence against the chemical induction of melanism in lepidoptera' by Ronald Aylmer Fisher | 28 December 1932 |
| NLB/61/139 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to George [Udny] Yule Esquire, FRS | 20 May 1921 |
| RR/26/40 | Referee's report by George Udny Yule, on a paper 'On the mathematical foundations of theoretical statistics' by R A Fisher | 6 July 1921 |
| RR/54/10 | Referee's report by George Udny Yule, on a paper 'A contribution to the mathematical theory of epidemics. Part IV' by William Ogilvy Kermack and A G McKendrick | September 1935 |
| NLB/62/333 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to [George] Udny Yule Esquire, FRS | 27 January 1922 |
| NLB/62/632 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to [George] Udny Yule Esquire, FRS | 28 March 1922 |
| RR/64/71 | Referee's report by George Udny Yule, on a paper 'Significance tests when several degrees of freedom arise simultaneously' by Harold Jeffreys | 17 January 1938 |
| NLB/66/500 | Copy letter from William Bate Hardy, Secretary of the Royal Society; to Prof. [George] Udny Yule, FRS | 20 May 1924 |
| RR/64/70 | Referee's report by George Udny Yule, on a paper 'The law of error and the combination of observations' by Harold Jeffreys | 7 January 1938 |
| NLB/62/673 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to [George] Yule Udny Esquire, FRS | 4 April 1922 |
| NLB/66/561 | Copy letter from William Bate Hardy, Secretary of the Royal Society; to Prof. [Arthur Prince] Chattock, FRS | 30 May 1924 |
| NLB/65/549 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Godfrey Harold] Hardy, FRS | 17 November 1923 |
| NLB/65/321 | Copy letter from William Bate Hardy, Secretary of the Royal Society; to Professor [Sydney] Chapman, FRS | 11 October 1923 |
| NLB/65/35 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to [George Udny] Yule Esq., CBE, FRS | 16 July 1923 |
| NLB/66/367 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to [George Udny] Yule Esq., C.B.E, FRS | 16 April 1924 |
| NLB/64/801 | Copy letter from secretary of the Royal Society; to Professor [Albert Charles] Seward FRS | 20 June 1923 |
| NLB/65/754 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Albert Charles] Seward, FRS | 18 December 1923 |
| NLB/67/863 | Copy letter from William Bate Hardy, Secretary of the Royal Society; to [George Udny] Yule Esq., CBE, FRS | 28 March 1925 |
| NLB/66/79 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof George Udny Yule, FRS. | 19 February 1924 |
| NLB/66/398 | Copy letter from [Francis Alexander Towle, Assistant Secretary of] the Royal Society; [to the Printers] | 1 May 1924 |
| NLB/67/350 | Copy letter from William Bate Hardy, Secretary of the Royal Society; to Professor [George] Udny Yule, FRS | 8 December 1924 |
| NLB/67/790 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir Sidney [Frederic] Harmer, KBE, FRS | 9 March 1925 |
| IM/005045 | Yule, George Udny | May 1946 |
| EC/1921/22 | Yule, George Udny: certificate of election to the Royal Society | |
| RR/29/77 | Referee's report by William Bateson, on a paper 'A mathematical theory of evolution, based on the conclusions of Dr. J. C. Willis' by George Udny Yule | 26 January 1924 |
| RR/16/409 | Referee's report by Alfred North Whitehead, on a paper 'The influence of bias of personal equation in statistics of ill-defined qualities: an experimental study' by George Udny Yule | November 1905 |
| RR/21/85 | Referee's report by Edward Albert Sharpey-Schafer, on a paper 'On the relation between the thymus and the generative organs and the influence of these organs upon growth' by E T Halnan, Francis Hugh Adam Marshall and George Udny Yule | 30 April 1914 |
| NLB/71/849 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to W. F. Sheppard Esq. | 15 November 1928 |
| NLB/8/332 | Copy letter from Herbert Rix, to George Udny Yule, [Fellow of the Royal Society], 40 Argyll Road, Kensington, W. | 3 October 1893 |
| RR/26/12 | Referee's report by George Udny Yule, on a paper 'An experimental determination of the distribution of the partial correlation coefficient in samples of thirty' by J W Bispham | 29 January 1922 |
| RR/36/30 | Referee's report by George Udny Yule, on a paper 'On the occurrence of the oestrous cycle after X-ray sterilisation. Part III.— The periodicity of oestrus after sterilisation of the adult' by Alan Sterling Parkes | 12 March 1927 |
| RR/34/135 | Referee's report by Frank Watson Dyson, on a paper 'On a method of investigating periodicities disturbed series, with special reference to Wolfer's sunspot numbers' by George Udny Yule | [December 1926] |
| NLB/68/572 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir [Alfred] Daniel Hall, FRS | 11 August 1925 |
| RR/16/418 | Referee's report by William Davidson Niven, on a memoir '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' by Reverend E W Barnes and on papers 'On the influence of bias and of personal equation in statistics of ill-defined qualities: An experimental study' by George Udny Yule | 19 December 1905 |
| RR/36/75 | Second referee's report by George Udny Yule, on a paper 'The fit of a formula for discrepant observations' by W F Sheppard | [May 1928] |
| RR/62/106 | Referee's report by George Udny Yule, on a paper 'A new method of arranging variety trials involving a large number of varieties' by Frank Yates | 20 March 1936 |
| AP/77/1 | Unpublished paper, 'On the influence of bias and of personal equation in statistics of ill-defined qualities: An experimental study' by George Udny Yule | 1905 |
| RR/16/413 | Referee's report by George Ballard Mathews, on a paper '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' by George Udny Yule | December 1905 |
| RR/15/137 | Referee's report by George Howard Darwin, on a paper 'The association of attributes in statistics, with examples from the material of the Childhood Society, etc' on a paper by George Udny Yule | 8 November 1899 |
| RR/15/290 | Referee's report by Alfred North Whitehead, on a paper 'On the theory of consistence of logical class-frequency and its geometrical representation' by George Udny Yule | March 1901 |
| RR/49/1 | Referee's report by George Udny Yule, on a paper 'On the interaction between several species of hosts and parasites' by V A Bailey | 30 April 1933 |
| RR/13/160 | Letter 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 Pearson | 21 December 1896 |
| RR/13/161 | Letter 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 Darwin | 27 December 1896 |
| RR/29/78 | Referee's report by Sydney Chapman, on a paper 'A mathematical theory of evolution, based on the conclusions of Dr. J. C. Willis' by George Udny Yule | October 1923 |
| RR/30/26 | Referee's report by George Udny Yule, on a paper 'On the physics of incubation' by Arthur Prince Chattock | 25 February 1924 |
| RR/34/136 | Referee's report by Arthur Schuster, on a paper 'On a method of investigating periodicities disturbed series, with special reference to Wolfer's sunspot numbers' by George Udny Yule | [January 1927] |
| RR/35/91 | Referee's report by George Udny Yule, on a paper 'A quantitative study of the course of fungal invasion of the apple fruit and its bearing on the nature of disease resistance.—Part I. A statistical method of studying fungal invasion' by F G Gregory and A S Horne | 18 April 1927 |
| RR/35/93 | Referee's report by George Udny Yule, on a paper 'A quantitative study of the course of fungal invasion of the apple fruit, and its bearing on the nature of disease resistance.—Part II. The application of the statistical method to certain specific problems' by F G Gregory and A S Horne | 18 April 1927 |
| RR/36/74 | Referee's report by George Udny Yule, on a paper 'The fit of a formula for discrepant observations' by W F Sheppard | 6 November 1927 |
| RR/46/42 | Referee's report by George Udny Yule, on a paper 'On the problem of the most efficient tests of statistical hypotheses' by Jerzy Neyman and Egon Sharpe Pearson | 5 October 1932 |
| RR/48/69 | Referee's report by George Udny Yule, on a paper 'Contributions to the mathematical theory of epidemics. III.—Further studies of the problem of endemicity' by William Ogilvy Kermack and A G McKendrick | 15 February 1933 |
| RR/56/54 | Referee's report by George Udny Yule, on a paper 'Sufficient statistics and uniformly most powerful tests of statistical hypotheses' by J Neyman and Egon Sharpe Pearson | 17 December 1935 |
| RR/58/83 | Referee's report by George Udny Yule, on a paper 'Competition between bivalents during chiasma formation' by Kenneth Mather | 5 February 1936 |
| RR/59/76 | Referee's report by George Udny Yule, on a paper 'The relation between variability and abundance shown by the measurements of the eggs of British nesting birds' by Ronald Aylmer Fisher | 21 November 1936 |
| RR/68/392 | Referee's report by George Udny Yule, on a paper 'On large-scale sample surveys' by Prasanta Chandra Mahalanobis | 14 June 1943 |
| PP/22/9/1 | Manuscript, 'On interference phenomena in electric waves passing through different thicknesses of electrolyte' by George Udny Yule | 1893 |
| PP/22/9 | Paper, 'On interference phenomena in electric waves passing through different thicknesses of electrolyte' by George Udny Yule | 1893 |
| PP/22/9/2 | Diagrams, experimental equipment and results by George Udny Yule | 1893 |
| RR/16/415 | Referee'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 Yule | 10 December 1905 |
| RR/16/416 | Referee's report by George Ballard Mathews, 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 Yule | 13 December 1905 |
| MC/17 | Volume 17 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1897-1899 |
| MC/21 | Volume 21 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1906 |
| MC/21/673 | Letter from [George Udny] Yule, 50 St James' Court, to [Robert William Frederick] Harrison, Assistant Secretary of the Royal Society, Burlington House | 27 March 1906 |