| RefNo | Title | Date |
| EC/1894/11 | Hill, Micaiah John Muller: certificate of election to the Royal Society | |
| NLB/40/776 | Copy letter from Robert William Frederick Harrison to Messrs Harrison & Sons | 12 August 1909 |
| NLB/3/551 | Copy letter from Herbert Rix, to Professor Micaiah John Muller Hill, 53 Parliament Hill Road, Hampstead | 10 July 1889 |
| NLB/7/770 | Copy letter from Herbert Rix, to Professor Joseph Prestwich, Fellow of the Royal Society | 24 April 1893 |
| NLB/10/459 | Copy letter from Herbert Rix, to Professor Micaiah John Muller Hill, Fellow of the Royal Society | 27 November 1894 |
| NLB/10/542 | Copy letter from Herbert Rix, to Messrs Harrison & Sons | 14 December 1894 |
| NLB/10/485 | Copy letter from Herbert Rix, to Professor Micaiah John Muller Hill, Fellow of the Royal Society | 4 December 1894 |
| NLB/13/574 | Copy letter from Robert William Frederick Harrison, to Messrs Harrison & Sons | 9 October 1896 |
| NLB/13/385 | Copy letter from Theodore E James, to [Messrs Harrison & Sons] | 12 September [August] 1896 |
| NLB/9/729 | Copy letter from Herbert Rix, to Professor Micaiah John Muller Hill, Fellow of the Royal Society, 27 Parliament Hill Road, Hampstead, N.W. | 6 July 1894 |
| NLB/13/760 | Copy letter from Robert William Frederick Harrison, to Messrs Harrison & Sons | 20 November 1896 |
| NLB/16/692 | Copy letter from Robert William Frederick Harrison, to Professor W M Hicks, Fellow of the Royal Society | 19 May 1898 |
| NLB/19/439 | Copy letter from Robert William Frederick Harrison, to Professor Micaiah John Muller Hill, Fellow of the Royal Society | 3 October 1899 |
| NLB/50/585 | Copy letter from Robert William Frederick Harrison, to Professor [Micaiah John Muller] Hill, Fellow of the Royal Society, The Chairman of the Mathematics Committee | 12 August 1914 |
| NLB/18/835 | Copy letter from Robert William Frederick Harrison, to Professor M J M Hill, Fellow of the Royal Society, Lake View, Northwood, Nr. Rickmansowrth | 29 May 1899 |
| NLB/19/809 | Copy letter from Robert William Frederick Harrison, to Professor Micaiah John Muller Hill, Fellow of the Royal Society, Lake View, Northwood, near Rickmansworth, Hertfordshire | 1 January 1900 |
| NLB/19/805 | Copy letter from Robert William Frederick Harrison, to Professor Micaiah John Muller Hill, Fellow of the Royal Society | 22 December 1899 |
| NLB/20/403 | Copy letter from Robert William Frederick Harrison, to Professor Micaiah John Muller Hill, Fellow of the Royal Society | 6 April 1900 |
| NLB/35/730 | Copy letter from Robert William Frederick Harrison, to Messrs Harrison & Sons | 11 July 1907 |
| NLB/47/457 | Copy letter from Robert William Frederick Harrison to Professor M [Micaiah] J [John] M [Muller] Hill FRS | 3 February 1913 |
| NLB/51/68 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society to Professor Micaiah John Muller Hill FRS, Chairman of the Mathematics Committee | 2 December 1914 |
| NLB/47/620 | Copy letter from Robert William Frederick Harrison to Professor M [Micaiah] J [John] M [Muller] Hill FRS | 4 March 1913 |
| NLB/45/382 | Copy letter from Robert William Frederick Harrison to Professor M [Micaiah] J [John] M [Muller] Hill FRS | 26 February 1912 |
| NLB/45/854 | Copy letter from Robert William Frederick Harrison to Professor M [Micaiah] J [John] M [Muller] Hill FRS | 20 May 1912 |
| NLB/46/766 | Copy letter from Robert William Frederick Harrison, to Professor [Micaiah John Muller] Hill, 18 Ferncroft Avenue, Hampstead | [October 1912] |
| NLB/47/224 | Copy letter from Robert William Frederick Harrison to Professor M [Micaiah] J [John] M [Muller] Hill FRS | 19 December 1912 |
| NLB/48/187 | Copy letter from Robert William Frederick Harrison, to Professor [Micaiah John Muller] Hill, Fellow of the Royal Society | 29 May 1913 |
| NLB/48/90 | Copy letter from Robert William Frederick Harrison, to Professor Micaiah John Muller, Fellow of the Royal Society | 9 May 1913 |
| NLB/47/501 | Copy letter from Robert William Frederick Harrison to Professor M [Micaiah] J [John] M [Muller] Hill, FRS | 10 February 1913 |
| NLB/48/176 | Copy letter from Robert William Frederick Harrison, to Professor [Micaiah John Muller] Hill, Fellow of the Royal Society | 27 May 1913 |
| NLB/48/403 | Copy letter from Robert William Frederick Harrison, to Professor [Micaiah John Muller] Hill, Fellow of the Royal Society, Chairman of the Mathematics Sectional Committee | 30 June 1913 |
| NLB/48/817 | Copy letter from Robert William Frederick Harrison, to Professor [Micaiah John Muller] Hill, Fellow of the Royal Society, Chairman of the Mathematics Sectional Committee | 17 October 1913 |
| NLB/47/422 | Copy letter from Robert William Frederick Harrison to Professor M [Micaiah] J [John] M [Muller] Hill FRS, 18 Ferncroft Avenue, Hampstead | 28 January 1913 |
| NLB/48/830 | Copy letter from Robert William Frederick Harrison, to Professor [Micaiah John Muller] Hill, Fellow of the Royal Society | 21 October 1913 |
| NLB/47/847 | Copy letter from Robert William Frederick Harrison to Professor M [Micaiah] J [John] M [Muller] Hill FRS, Chairman of the Mathematics Sectional Committee | 21 April 1913 |
| NLB/48/455 | Copy letter from Robert William Frederick Harrison, to Professor [Micaiah John Muller] Hill, Fellow of the Royal Society, Chairman of the Mathematics Committee | 7 July 1913 |
| NLB/48/786 | Copy letter from Robert William Frederick Harrison, to Professor Micaiah John Muller Hill, Fellow of the Royal Society, Chairman of the Mathematics Committee | 14 October 1913 |
| NLB/50/95 | Copy letter from Robert William Frederick Harrison, to Professor [Micaiah John Muller] Hill, Fellow of the Royal Society | 30 April 1914 |
| NLB/50/800 | Copy letter from Robert William Frederick Harrison, to Professor [Micaiah John Muller] Hill, Fellow of the Royal Society, Chairman of the Mathematics Committee | 9 November 1914 |
| NLB/50/536 | Copy letter from Robert William Frederick Harrison, to Professor [Micaiah John Muller] Hill, Fellow of the Royal Society, Chairman of the Mathematics Committee | 27 July 1914 |
| NLB/50/767 | Copy letter from Robert William Frederick Harrison, to Professor [Micaiah John Muller] Hill, Fellow of the Royal Society | 2 November 1914 |
| NLB/55/225 | Copy letter from Miss Maud K. Jukes, Assistant Secretary of the Royal Society; to Professor [Micaiah John Muller] Hill, FRS | 24 January 1918 |
| NLB/56/429 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [Micaiah John Muller] Hill, FRS | 11 February 1919 |
| NLB/54/459 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Messrs Harrison & Sons | 18 May 1917 |
| NLB/54/741 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to [Messrs Harrison & Sons] | 5 September 1917 |
| NLB/54/462 | Copy letter from [Robert William Frederick Harrison, Assistant Secretary of the Royal Society]; to Professor [Micaiah John Muller] Hill, FRS; 18 Ferncroft Avenue, Hampstead, N.W. | 18 May 1917 |
| NLB/56/119 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [Micaiah John Muller] Hill, FRS | 26 November 1918 |
| NLB/52/584 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor Micaiah John Muller Hill, FRS; 18 Ferncroft Avenue, Hampstead, N.W. | 22 January 1916 |
| RR/9/220 | Referee's report by William Davidson Niven, on a paper 'On the motion of fluid, part of which is moving rotationally and part irrotationally' by Micaiah John Muller Hill | 28 May 1884 |
| NLB/47 | New Letter Book volume 47, copy letters sent from Royal Society administration | 12 November 1912-24 April 1913 |
| NLB/56/425 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Joseph [John] Thomson, President of the Royal Society | 10 February 1919 |
| NLB/56/498 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to the Provost of University College | 25 February 1919 |
| RR/9/219 | Referee's report by William Henry Besant, on a paper 'On the motion of fluid, part of which is moving rotationally and part irrotationally' by Micaiah John Muller Hill | 8 March 1884 |
| RR/11/53 | Letter from Andrew Russell Forsyth, on a paper 'On the locus of singular points and lines which occur in connection the theory of the locus of ultimate intersections of a system of surfaces' by Micaiah John Muller Hill | 27 October 1891 |
| RR/11/55 | Referee's report by Samuel Roberts, on a paper 'On the locus of singular points and lines which occur in connection the theory of the locus of ultimate intersections of a system of surfaces' by Micaiah John Muller Hill | 24 November 1891 |
| RR/11/56 | Letter from Micaiah John Muller Hill, on his paper 'On the locus of singular points and lines which occur in connection the theory of the locus of ultimate intersections of a system of surfaces' to John William Strutt, Lord Rayleigh, Secretary of the Royal Society | 21 December 1891 |
| NLB/58/809 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Professor [Micaiah John Muller] Hill, FRS | 21 June 1920 |
| NLB/59/37 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Professor [Micaiah John Muller] Hill, FRS | 12 July 1920 |
| NLB/59/858 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Professor [Micaiah John Muller] Hill, FRS | 22 November 1920 |
| RR/12/137 | Referee's report by Edward John Routh, on a paper 'On a spherical vortex' by Micaiah John Muller Hill | 10 February 1894 |
| NLB/61/688 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Micaiah John Muller] Hill, FRS | 11 October 1921 |
| NLB/62/26 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Micaiah John Muller] Hill, FRS | 18 November 1921 |
| NLB/65/807 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to [Alfred Maurice] Binnie Esq.; 15 Portland Street, York | 4 January 1924 |
| RR/12/86 | Detailed referee's report by Micaiah John Muller Hill, on a paper 'On the singular solutions of simultaneous ordinary differential equations and the theory of congruencies' by Alfred Cardew Dixon | nd [1894] |
| RR/12/84 | Letter from Micaiah John Muller Hill, to John William Strutt, 3rd Baron Rayleigh, regarding a paper 'On the singular solutions of simultaneous ordinary differential equations and the theory of congruencies' by Alfred Cardew Dixon | 7 August 1894 |
| NLB/47/491 | Copy letter from Robert William Frederick Harrison to Professor M [Micaiah] J [John] M [Muller] Hill FRS | 7 February 1913 |
| NLB/56 | New Letter Book volume 56, copy letters sent from Royal Society administration | 1 November 1918-27 June 1919 |
| NLB/48 | New Letter Book volume 48, copy letters sent from Royal Society administration | 25 April 1913-25 October 1913 |
| RR/12/87 | Second letter from Micaiah John Muller Hill, to John William Strutt, 3rd Baron Rayleigh, regarding a paper 'On the singular solutions of simultaneous ordinary differential equations and the theory of congruencies' by Alfred Cardew Dixon | 17 August 1894 |
| RR/14/140 | Referee's report by Micaiah John Muller Hill, on a paper 'On simultaneous partial differential equations' by Alfred Cardew Dixon | 27 July 1899 |
| IM/002097 | Hill, Micaiah John Muller | 1922 |
| RR/14/141 | Detailed referee's report by Micaiah John Muller Hill, on a paper 'On simultaneous partial differential equations' by Alfred Cardew Dixon | 26 July 1899 |
| RR/14/139 | Letter from Micaiah John Muller Hill, regarding a paper 'On simultaneous partial differential equations' by Alfred Cardew Dixon | 27 July 1899 |
| RR/14/33 | Referee's report by Micaiah John Muller Hill, on a paper 'Contributions to the theory of simultaneous partial differential equations' by Alfred Cardew Dixon | [January 1899] |
| RR/12/85 | Referee's report by Micaiah John Muller Hill, on a paper 'On the singular solutions of simultaneous ordinary differential equations and the theory of congruencies' by Alfred Cardew Dixon | 7 August 1894 |
| RR/14/149 | Third referee's report by Micaiah John Muller Hill, on a paper 'On simultaneous partial differential equations' by Alfred Cardew Dixon | 10 April 1900 |
| RR/11/54 | Referee's report by Andrew Russell Forsyth, on a paper 'On the locus of singular points and lines which occur in connection the theory of the locus of ultimate intersections of a system of surfaces' by Micaiah John Muller Hill | 27 October 1891 |
| RR/13/253 | Referee'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 Filon | 17 February 1898 |
| RR/14/38 | Letter from Micaiah John Muller Hill, to Arthur William Rucker, regarding a paper 'Contributions to the theory of simultaneous partial differential equations' by Alfred Cardew Dixon | 25 January 1899 |
| RR/14/58 | Referee's report by Micaiah John Muller Hill, on a paper 'Researches in vortex motion.—Part III. On spiral or gyrostatic vortex aggregates' by William Mitchinson Hicks | nd [1898] |
| RR/14/146 | Second referee's report by Micaiah John Muller Hill, on a paper 'On simultaneous partial differential equations' by Alfred Cardew Dixon | 3 January 1900 |
| NLB/38/674 | Copy letter from Robert William Frederick Harrison, to Professor Micaiah John Muller, Fellow of the Royal Society | 20 October 1908 |