| RefNo | Title | Date |
| MM/22/12 | Posctard from Sewall Wright, Ford Collins, Colorado, USA, to Prof RC Punnett | 7 September 1965 |
| MM/22/13 | Letter from F S Morgan, The White Knight Poultry Farm, East Farleigh, Maidstone, Kent, to Prof R C Punnett | 5 March 1926 |
| MS/868 | Some correspondence and papers of Reginald Crundall Punnett | 1925-1968 |
| RR/15/243 | Referee's report by Thomas George Bond Howes, on a paper 'The composition and variations of the pelvic plexus in acanthias vulgaris' by Reginald Crundell Punnett | 5 March 1901 |
| RR/15/242 | Referee's report by Daniel John Cunningham, on a paper 'The composition and variations of the pelvic plexus in acanthias vulgaris' by Reginald Crundell Punnett | March 1901 |
| RR/16/173 | Referee's report by Francis Darwin, on report submitted to the Evolution Committee, II, regarding three papers 'Experimental Studies in the Physiology of Heredity' by William Bateson, E R Saunders and Reginald Crundall Punnett, 'Experiments with Poulty' by C C Hurst, and 'Some Experiments on Wheat-breeding' by Rowland Harry Biffen | September 1904 |
| RR/16/171 | Referee's report by Francis Galton, on three papers 'Experimental Studies in the Physiology of Heredity' by William Bateson, E R Saunders and Reginald Crundall Punnett, 'Experiments with Poulty' by C C Hurst, and 'Some Experiments on Wheat-breeding' by Rowland Harry Biffen | August 1904 |
| NLB/20/179 | Copy letter from Robert William Frederick Harrison, to Reginald Crundall Punnett, Caius College, Cambridge | 16 February 1900 |
| NLB/19/539 | Copy letter from Robert William Frederick Harrison, to Dr Hans Friedrich Gadow, Fellow of the Royal Society | 28 October 1899 |
| NLB/19/350 | Copy letter from Michael Foster, to Edwin Ray Lankester, [Fellow of the Royal Society] | 22 August 1899 |
| NLB/19/533 | Copy letter from Robert William Frederick Harrison, to Dr Hans Friedrich Gadow, Fellow of the Royal Society | 26 October 1899 |
| NLB/20/8 | Copy letter from Robert William Frederick Harrison, to Professor James Cossar Ewart, Fellow of the Royal Society | 12 January 1900 |
| NLB/23/1/47 | Copy letter from A H White, to Reginald Crundall Punnett, Fellow of the Royal Society | 29 August 1901 |
| NLB/32/618 | Copy letter from Robert William Frederick Harrison, to P Murray Thomson, 5 York Place, Edinburgh | 24 April 1906 |
| NLB/32/801 | Copy letter from Robert William Frederick Harrison, to Professor Sydney John Hickson, Fellow of the Royal Society | 28 May 1906 |
| NLB/63/554 | Copy letter from William Bate Hardy, Secretary of the Royal Society and FRS; to Professor [Reginald Crundall] Punnett, FRS | 04 November 1922 |
| NLB/47/329 | Copy letter from John Rose Bradford, Secretary of the Royal Society to Professor R [Reginald] C [Crundall] Punnett FRS | 15 January 1912 |
| NLB/55/727 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to [Professor Reginald Crundall] Punnett, FRS | 08 August 1918 |
| RR/23/27 | Referee's report by Reginal Crundall Punnett, on a paper 'Correlation between relatives on the supposition of mendelian inheritance' by R A Fisher | 8 August 1916 |
| RR/19/1 | Referee's report by Reginald Crundall Punnett, on a paper 'Transmission of environmental effects from parent to offspring in Simocephalus vetulus' by Wilfred Eade Agar | [November 1912] |
| RR/41/57 | Referee's report by Reginald Crundall Punnett, on a paper 'A cytological demonstration of "genetic" crossing-over' by Cyril Dean Darlington | July 1930 |
| RR/28/128 | Referee's report by Reginald Crundall Punnett, on a paper 'Analytical studies on the factors causing the sexual display in the mountain-newt (Triton alpestris)' by Walter Finkler | [July 1923] |
| NLB/54/650 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [Reginald Crundall] Punnett, FRS | 13 July 1917 |
| RR/37/26 | Referee's report by Reginald Crundall Punnett, on a paper 'The inheritance of sinistrality in Limnoea peregra' by Arthur Edwin Boycott, C Diver, S Hardy and F M Turner | November 1928 |
| RR/68/28 | Referee's report by Reginald Crundall Punnett, on a paper 'Heterochromatin in Triton' by Harold Garnet Callan | [1941] |
| NLB/58/209 | Copy letter from [James Hopwood Jeans, Secretary of the Royal Society]; to Professor [Reginald Crundall] Punnett, FRS | 26 March 1920 |
| RR/36/40 | Referee's report by John Bretland Farmer, on a paper 'Linkage groups and chromosome number in Lathyrus' by Reginald Crundall Punnett | [October 1927] |
| RR/41/114 | Referee's report by Reginald Crundall Punnett, on a paper 'The results of testicular transplantation in brown leghorn hens' by A W Greenwood and J S S Blyth | January 1930 |
| NLB/58/780 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Professor [Reginald Crundall] Punnett, FRS | 18 June 1920 |
| RR/41/33 | Referee's report by Reginald Crundall Punnett, on a paper 'The inheritance of sinistrality in Limnaea peregra (Mollusca, Pulmonata)' by Arthur Edwin Boycott, C Diver, S L Garstang, and F M Turner | May 1930 |
| RR/43/68 | Referee's report by Reginald Crundall Punnett, on a paper 'Induced melanism in lepidoptera' by A W Mckenny Hughes | December 1931 |
| NLB/60/366 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Reginald Crundall] Punnett, FRS | 21 January 1921 |
| RR/14/225 | Referee's report by Daniel John Cunningham, on a paper 'On the formation of the pelvic plexus, with especial reference to the nervus collector in the genus Mustelus' by Reginald Crundall Punnett | nd [November 1899] |
| RR/45/111 | Referee's report by Reginald Crundall Punnett, on a paper 'A genetical formula for the inheritance of intelligence in man' by C C Hurst | [August 1932] |
| RR/14/226 | Referee's report by James Cossar Ewart, on a paper 'On the formation of the pelvic plexus, with especial reference to the nervus collector in the genus Mustelus' by Reginald Crundall Punnett | nd [January 1900] |
| RR/55/155 | Referee's report by Reginald Crundall Punnett, on a paper 'A new sub-lethal colour mutation in the house mouse' by Hans Grüneberg | June 1935 |
| NLB/60/405 | Copy letter from William Bate Hardy, Secretary of the Royal Society; to Professor [Reginald Crundall] Punnett, FRS | 28 January 1921 |
| RR/63/7 | Referee's report by Reginald Crundall Punnett, on a paper 'The experimental determination of the time of chromosome doubling' by Kenneth Mather | May 1937 |
| RR/26/66 | Referee's report by Reginald Crundall Punnett, on a paper 'Studies in dedifferentiation I - Dedifferentiation in Echinus larvae, and it's relation to metamorphosis' by Julian Sorell Huxley | [November 1921] |
| RR/28/90 | Referee's report by Reginald Crundall Punnett, on a paper 'The significance of an achondroplasia-like condition met with in cattle' by Francis Albert Eley Crew | [April 1923] |
| RR/67/27 | Referee's report by Reginald Crundall Punnett, on a paper 'Cytological studies in oenothera with special reference to the relation of chromosomes to nucleoli' by P N Bhaduri | November 1939 |
| RR/55/150 | Referee's report by Reginald Crundall Punnett, on a paper 'Variation in plumage response of brown leghorn capons to oestrone II—intradermal injection' by A W Greenwood and J S S Blyth | April 1935 |
| RR/53/75 | Referee's report by Reginald Crundall Punnett, on a paper 'Dominance in poultry' by Ronald Aylmer Fisher | [December 1934] |
| RR/55/148 | Referee's report by Reginald Crundall Punnett, on a paper 'Variation in plumage response of brown leghorn capons to oestrone I-intramnuscular injection' by A W Greenwood and J S S Blyth | April 1935 |
| NLB/63/775 | Copy letter from Sir David Prain, Treasurer of the Royal Society and FRS; to Professor [Reginald Crundall] Punnett, FRS | 13 December 1922 |
| RR/67/194 | Referee's report by Reginald Crundall Punnett, on a paper 'The genetical analysis of a sex-limited character in Drosophila melanogaster and its bearing on the evolution of secondary sexual characteristics' by Cecil Gordon and Frances Gordon | 22 May 1939 |
| RR/68/20 | Referee's report by Reginald Crundall Punnett, on a paper 'The reproductive cycles of the British and Continental races of the Starling (Sturnus vulgaris L.)' by W A Bullough | [1941] |
| RR/68/241 | Referee's report by Reginald Crundall Punnett, on a paper 'The selection of invisible mutations' by Kenneth Mather and L G Wigan | [1942] |
| RR/68/40 | Referee's report by Reginald Crundall Punnett, on a paper 'Morbid mitosis and the activity of inert chromosomes in Sorghum' by Cyril Dean Darlington and P T Thomas | 22 May 1941 |
| RR/68/393 | Referee's report by Reginald Crundall Punnett, on a paper 'The genetical activity of heterochromatin' by Kenneth Mather | 7 November 1943 |
| NLB/65/30 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir Sidney [Frederic] Harmer, FRS | 16 July 1923 |
| NLB/64/686 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir Sidney [Frederic] Harmer, K.B.E. FRS. | 4 June 1923 |
| NLB/68/966 | Copy letter from Henry Hallett Dale, Secretary of the Royal Society; to Professor [Reginald Crundall] Punnett, FRS | 10 December 1925 |
| NLB/68/908 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to [William] Bateson Esq., FRS | 27 November 1925 |
| NLB/69/672 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof. [Reginald Crundall] Punnett, FRS | 12 July 1926 |
| EC/1912/16 | Punnett, Reginald Crundall: certificate of election to the Royal Society | |
| IM/003699 | Punnett, Reginald Crundall | nd |
| IM/GA/GAC/7509 | Punnett, Reginald Crundall | nd |
| RR/16/172 | Letter from Sidney Frederic Harmer, to Robert William Frederick Harrison, regarding three papers 'Experimental Studies in the Physiology of Heredity' by William Bateson, E R Saunders and Reginald Crundall Punnett, 'Experiments with Poulty' by C C Hurst, and 'Some Experiments on Wheat-breeding' by Rowland Harry Biffen | 19 August 1904 |
| NLB/19/532 | Copy letter from Robert William Frederick Harrison, to Professor Edwin Ray Lankester, Fellow of the Royal Society | 26 October 1899 |
| RR/16/174 | Referee's report by Walter Frank Raphael Weldon, on a paper 'Experimental Studies in the Physiology of Heredity' by William Bateson, E R Saunders and Reginald Crundall Punnett | 9 October 1904 |
| RR/64/10 | Referee's report by Reginald Crundall Punnett, on a paper 'Dominance in poultry: feathered feet, rose comb, internal pigment and pile' by Ronald Aylmer Fisher | [October 1937] |
| RR/68/74 | Referee's report by Reginald Crundall Punnett, on a paper 'The relation between nutrition and exhibition of the gene antennales (Drosophila melanogaster)' by C Gordon and James H Sang | [1941] |
| NLB/68/902 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir Sidney Harmer, KBE, FRS | 25 November 1925 |
| NLB/69/1 | Copy letter from Henry Hallett Dale, Secretary of the Royal Society; to Sir Sidney [Frederic] Harmer K.B.E. FRS | 10 December 1925 |
| RR/47/90 | Referee's report by Reginald Crundall Punnett, on a paper 'The recent development of melanism in the larvæ of certain species of Lepidoptera, with an account of its inheritance in Selenia bilunaria esp' by John William Heslop-Harrison | April 1932 |
| RR/16/175 | Referee's report by Walter Frank Raphael Weldon, on reports to the Evolution Committee, II, regarding three papers 'Experimental Studies in the Physiology of Heredity' by William Bateson, E R Saunders and Reginald Crundall Punnett, 'Experiments with Poulty' by C C Hurst, and 'Some Experiments on Wheat-breeding' by Rowland Harry Biffen | October 1904 |
| RR/21/1 | Referee's report by Reginald Crundall Punnett, on a paper 'Experiments on inheritance in parthenogenesis' by Wilfred Eade Agar | [June 1914] |
| RR/58/82 | Referee's report by Reginald Crundall Punnett, on a paper 'Competition between bivalents during chiasma formation' by Kenneth Mather | January 1936 |