| Reference number | Title | Date |
| EC/1893/08 | Hobson, Ernest William: certificate of election to the Royal Society | |
| IM/Maull/002146 | Hobson, Ernest William | nd |
| NLB/9/465 | Copy letter from Herbert Rix, to Dr Ernest William Hobson, Fellow of the Royal Society | 22 May 1894 |
| NLB/10/841 | Copy letter from Herbert Rix, to Dr Walter Holbrook Gaskell, Fellow of the Royal Society | 16 February 1895 |
| NLB/9/373 | Copy letter from Herbert Rix, to Dr Ernest William Hobson, Fellow of the Royal Society | 8 May 1894 |
| NLB/13/27 | Copy letter from Robert William Frederick Harrison, to Messrs Harrison & Sons | 29 May 1896 |
| NLB/13/129 | Copy letter from Robert William Frederick Harrison, to Dr Ernest William Hobson, Fellow of the Royal Society | 19 June 1896 |
| NLB/13/28 | Copy letter from Robert William Frederick Harrison, to Collings & Company | 29 May 1896 |
| NLB/12/565 | Copy letter from Herbert Rix, to Mr Collings | 14 March 1896 |
| NLB/13/470 | Copy letter from Robert William Frederick Harrison, to Lord Rayleigh [John William Strutt], Secretary, Royal Society | 21 September 1896 |
| NLB/13/548 | Copy letter from Robert William Frederick Harrison, to Dr Ernest William Hobson, Fellow of the Royal Society | 6 October 1896 |
| RR/18/63 | Referee's report by Ernest William Hobson, on a paper 'Sturm-Liouville series of normal functions in the theory of integral equations' by James Mercer | April 1910 |
| RR/15/152 | Referee's report by Ernest William Hobson, on a paper 'A memoir on integral functions' by Ernest William Barnes | October 1901 |
| RR/16/239 | Referee's report by Ernest William Hobson, on a paper 'The convergence of infinite series of analytic functions' by H A Webb | January 1904 |
| RR/16/37 | Referee's report by Ernest William Hobson, on a paper 'The integrals of the squares of ellipsoidal surface harmonic functions' by George Howard Darwin | 4 January 1904 |
| RR/16/163 | Referee's report by Ernest William Hobson, on a paper 'A memoir on the theory of order as defined by boundaries' by Edward T Dixon | November 1904 |
| NLB/23/1/80 | Copy letter from R Chapman, to Dr Ernest William Hobson, Fellow of the Royal Society | 13 September 1901 |
| NLB/17/86 | Copy letter from Robert William Frederick Harrison, to Dr Ernest William Hobson, Fellow of the Royal Society | 13 July 1898 |
| NLB/19/140 | Copy letter from Robert William Frederick Harrison, to Dr Ernest William Hobson, [Fellow of the Royal Society] | 28 June 1899 |
| NLB/19/715 | Copy letter from Robert William Frederick Harrison, to Dr Ernest William Hobson, Fellow of the Royal Society | 1 December 1899 |
| NLB/20/366 | Copy letter from Robert William Frederick Harrison, to Dr Ernest William Hobson, Fellow of the Royal Society | 3 April 1900 |
| NLB/22/375 | Copy letter from Robert William Frederick Harrison, to Dr [Ernest William] Hobson, Fellow of the Royal Society | 3 May 1901 |
| NLB/23/1/189 | Copy letter from Robert William Frederick Harrison, to Dr Ernest William Hobson, Fellow of the Royal Society | 9 October 1901 |
| NLB/23/2/206 | Copy letter from Sir Michael Foster, to Dr Ernest William Hobson, Fellow of the Royal Society | 3 June 1902 |
| NLB/48/123 | Copy letter from Robert William Frederick Harrison, to Professor [Ernest William] Hobson, Fellow of the Royal Society | 21 May 1913 |
| NLB/54/132 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir [James Hopwood] Jeans, Chairman of the Mathematics Committee and FRS | 13 February 1917 |
| NLB/29/151 | Copy letter from Robert William Frederick Harrison, to Dr Ernest William Hobson, Fellow of the Royal Society | 13 July 1904 |
| NLB/29/364 | Copy letter from Robert William Frederick Harrison, to Dr Ernest William Hobson, Fellow of the Royal Society, The Gables, Mount Pleasant, Cambridge | 30 September 1904 |
| NLB/29/347 | Copy letter from Robert William Frederick Harrison, to Dr Ernest William Hobson, Fellow of the Royal Society | 27 September 1904 |
| NLB/29/424 | Copy letter from Robert William Frederick Harrison, to [Ernest William] Hobson, Fellow of the Royal Society | 7 October 1904 |
| NLB/35/156 | Copy letter from Robert William Frederick Harrison, to Dr Ernest William Hobson, Fellow of the Royal Society | 26 April 1907 |
| NLB/35/303 | Copy letter from Robert William Frederick Harrison, to Dr Ernest William Hobson, Fellow of the Royal Society | 14 May 1907 |
| NLB/36/457 | Copy letter from Joseph Larmor, to General Sir Dighton Probyn | 1 November 1907 |
| NLB/36/452 | Copy letter from Robert William Frederick Harrison, to the Deputy Master of the Mint | 1 November 1907 |
| NLB/36/505 | Copy letter from Joseph Larmor, to Dr Ernest William Hobson, Fellow of the Royal Society | [5] November 1907 |
| NLB/42/142 | Copy letter from Robert William Frederick Harrison to Dr E [Ernest] W [William] Hobson, FRS, The Gables, Mount Pleasant, Cambridge | 12 April 1910 |
| NLB/38/185 | Copy letter from Robert William Frederick Harrison, to Dr Ernest William Hobson, Fellow of the Royal Society | 24 June 1908 |
| NLB/42/791 | Copy letter from Robert William Frederick Harrison to Professor E [Ernest] W [William] Hobson FRS | 12 October 1910 |
| NLB/41/170 | Copy letter from Robert William Frederick Harrison, to [Ernest William] Hobson, Fellow of the Royal Society | 27 October 1909 |
| NLB/41/85 | Copy letter from Robert William Frederick Harrison, to Dr Ernest William Hobson, Fellow of the Royal Society | October 1909 |
| NLB/42/414 | Copy letter from Robert William Frederick Harrison to Professor E [Ernest] W [William] Hobson FRS, Chairman of Mathematices Sectional Committee | 8 June 1910 |
| NLB/42/342 | Copy letter from Robert William Frederick Harrison to Professor [Ernest William] Hobson FRS, The Gables, Mount Pleasant, Cambridge | 26 May 1910 |
| NLB/41/755 | Copy letter from Robert William Frederick Harrison, to Dr Ernest William Hobson, Fellow of the Royal Society | 21 February 1910 |
| NLB/41/658 | Copy letter from Robert William Frederick Harrison, to Dr Ernest William Hobson, Fellow of the Royal Society, Chairman of the Mathematics Sectional Committee | 31 January 1910 |
| NLB/44/61 | Copy letter from Robert William Frederick Harrison to Professor E [Ernest] W [William] Hobson FRS | 1May 1911 |
| NLB/41/668 | Copy letter from Robert William Frederick Harrison, to Dr Ernest William Hobson, Fellow of the Royal Society, Chairman of the Mathematics Committee | 1 February 1910 |
| NLB/42/495 | Copy letter from Robert William Frederick Harrison to Professor E [Ernest] W [William] Hobson FRS, The Gables, Mount Pleasant, Cambridge | 21 June 1910 |
| NLB/42/622 | Copy letter from Robert William Frederick Harrison to Professor [Ernest William] Hobson, The Chairman of the Mathematics Committee | 19 July 1910 |
| NLB/42/726 | Copy letter from Robert William Frederick Harrison to Professor E [Ernest] W [William] Hobson FRS | 27 September 1910 |
| NLB/44/206 | Copy letter from Robert William Frederick Harrison to Professor E [Ernest] W [William] Hobson FRS | 25 May 1911 |
| NLB/43/712 | Copy letter from Robert William Frederick Harrison, to Professor Ernest William Hobson, Fellow of the Royal Society | 16 March 1911 |
| NLB/46/117 | Copy letter from Archibald Geikie, to Professor Ernest William Hobson, Fellow of the Royal Society | 12 June 1912 |
| RR/16/241 | Referee's report by Henry Frederick Baker and Ernest William Hobson, on a paper 'The convergence of infinite series of analytic functions' by H A Webb | 16 March 1905 |
| NLB/54/23 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [Ernest William] Hobson, FRS | 23 January 1917 |
| RR/24/98 | Referee's report by Ernest William Hobson, on a paper 'On the series of Legendre' by William Henry Young | [November 1917] |
| NLB/54/54 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir [James Hopwood] Jeans, Chairman of the Mathematics Committee and FRS | 29 January 1917 |
| RR/18/124 | Referee's report by Ernest William Hobson, on a paper 'On harmonic expansions' by Alfred Cardew Dixon | July 1911 |
| NLB/54/268 | Copy letter from [Robert William Frederick Harrison, Assistant Secretary of the Royal Society]; to Professor [Ernest William] Hobson, FRS | 19 March 1917 |
| RR/20/163 | Referee's report by Ernest William Hobson, on a paper 'On a condition that a trigonometrical series should have a certain form' by W H Young | May 1913 |
| NLB/59/851 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Professor [Ernest William] Hobson, FRS | 19 November 1920 |
| RR/25/27 | Referee's report by Ernest William Hobson, on a paper 'Contribution to the theory of attraction when the force varies as any power of the distance' by Percy Alexander MacMahon and H B C Darling | [August 1918] |
| RR/20/162 | Referee's report by Ernest William Hobson, on a paper 'On Fourier series and functions of bounded variation' by W H Young | May 1913 |
| NLB/56/550 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [Ernest William] Hobson, FRS | 11 March 1919 |
| RR/34/18 | Referee's report by Ernest William Hobson, on a paper 'Generalised sturm-liouville expansions in series of pairs of related functions' by H Horrocks | [March 1927] |
| NLB/59/894 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Professor [Ernest William] Hobson, FRS | 26 November 1920 |
| RR/23/109 | Referee's report by Ernest William Hobson, on a paper O'On the ordinary convergence of restricted fourier series' by W H Young | January 1917 |
| NLB/60/235 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Ernest William] Hobson, FRS | 3 January 1921 |
| RR/13/46 | Referee's report by Edward John Routh, on a paper 'On a type of spherical harmonics of unrestricted degree, order, and argument' by Ernest William Hobson | March 1896 |
| NLB/61/730 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [Ernest William] Hobson, FRS | 18 October 1921 |
| RR/12/347 | Letter from Ernest William Hobson, to John William Strutt, 3rd Baron Rayleigh, regarding a paper 'On certain functions connected with tesseral harmonics, with applications' by A H Leahy | 24 April 1895 |
| RR/17/415 | Referee's report by Ernest William Hobson, on a paper 'Bessel function of large argument and index' by John Edensor Littlewood | July 1909 |
| RR/12/383 | Referee's report by Ernest William Hobson, on a paper 'Theorems on the attraction of ellipsoids for certain laws of force other than the inverse square' by Edward John Routh | 12 June 1895 |
| NLB/60/547 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [Ernest William] Hobson, FRS | 21 February 1921 |
| RR/17/417 | Referee's report by Ernest William Hobson, on a paper 'The diffraction of electric waves round a perfectly reflecting obstacle' by Hector Munro Macdonald | December 1909 |
| RR/15/239 | Referee's report by Ernest William Hobson, on a paper 'Sur la stabilite de l'equilibre des figures pyriformes affectees par une masse fluide en rotation' by Jules Henri Poincare | November 1901 |
| NLB/59/871 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Professor [Ernest William] Hobson, FRS | 24 November 1920 |
| NLB/59/861 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Professor [Ernest William] Hobson, FRS | 22 November 1920 |
| RR/19/151 | Referee's report by Ernest William Hobson, on a paper 'On the formation of usually convergent Fourier series' by William Henry Young | nd [1912] |
| RR/15/171 | Referee's report by Ernest William Hobson, on a paper 'Ellipsoidal harmonic analysis' by George Howard Darwin | May 1901 |
| RR/25/59 | Referee's report by Ernest William Hobson, on a paper 'On non-harmonic trigonometrical series' by William Henry Young | [April 1918] |
| RR/24/90 | Referee's report by Ernest William Hobson, on a paper 'The zeros of bessel functions' by George Neville Watson | [November 1917] |
| RR/17/266 | Referee's report by Ernest William Hobson, on a paper 'The w-functions - a class of normal functions' by E Cunningham | August 1908 |
| NLB/60/306 | Copy letter from F. E. Inglis, Clerk of the Royal Society; to Professor [Ernest William] Hobson, FRS; The Gables, Mount Pleasant, Cambridge | 14 January 1921 |
| RR/16/69 | Referee's report by Ernest William Hobson, on a paper 'A generaliziation of the functions xn and gamma (n)' by Reverend F H Jackson | April 1904 |
| RR/17/324 | Referee's report by Ernest William Hobson, on a paper 'Functions of positive and negative type' by James Mercer | April 1909 |
| NLB/61/828 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to H. F. Baker Esquire; Walcott, Storey's Way, Cambridge | 1 November 1921 |
| NLB/61/5 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [Ernest William] Hobson, FRS, and Professor [William Henry] Young, FRS | 26 April 1921 |
| NLB/64/82 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [Ernest William] Hobson, Chairman of the National Committee for Mathematics and FRS | 30 January 1923 |
| NLB/57/895 | Copy letter from Edwin Deller, Acting Assistant Secretary of the Royal Society; to Professor Herbert McLeod, FRS | 28 February 1920 |
| RR/12/170 | Referee's report by Ernest William Hobson and William Davidson Niven, on a paper 'On certain functions connected with tesseral harmonics, with applications' by A H Leahy | 8 November 1894 |
| NLB/57/897 | Copy letter from Edwin Deller, Acting Assistant Secretary of the Royal Society; to Professor WW [William Whitehead] Watts, FRS | 28 February 1920 |
| NLB/70/848 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Ernest William] Hobson, FRS | 17 October 1927 |
| NLB/73/134 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof. [Ernest William] Hobson, FRS | 19 December 1930 |
| NLB/72/393 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Ernest William] Hobson, FRS | 30 September 1929 |
| NLB/73/92 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof. [Ernest William] Hobson, FRS | 26 November 1930 |
| NLB/13/474 | Copy letter from Robert William Frederick Harrison, to Lord Rayleigh [John William Strutt], Secretary, Royal Society | 23 September 1896 |
| RR/16/259 | Referee's report by Ernest William Hobson, on a paper 'The asymptotic expansion of integral functions defined by Taylor's series' by Ernest William Barnes | November 1905 |
| NLB/16/77 | Copy letter from Robert William Frederick Harrison, to Professor Henrici, Fellow of the Royal Society | 26 January 1898 |
| NLB/15/604 | Copy letter from Arthur William Rucker, to Dr Ernest William Hobson, Fellow of the Royal Society | 3 November 1897 |
| NLB/15/717 | Copy letter from Arthur William Rucker, to Dr Ernest William Hobson, [Fellow of the Royal Society] | 13 November 1897 |
| NLB/38/335 | Copy letter from Robert William Frederick Harrison, to Dr Ernest William Hobson, Fellow of the Royal Society | 16 July 1908 |
| RR/18/100 | Referee's report by Ernest William Hobson, on a paper 'A theory of asymptotic series' by George Neville Watson | April 1911 |
| RR/16/244 | Referee's report by Ernest William Hobson, on a paper 'The general theory of integration' by William Henry Young | August 1904 |
| NLB/16/74 | Copy letter from Robert William Frederick Harrison, to Professor Henrici, Fellow of the Royal Society | 26 January 1898 |
| NLB/40/582 | Copy letter from Robert William Frederick Harrison to Dr E [Ernest] W [William] Hobson FRS | 30 June 1909 |
| NLB/54 | New Letter Book volume 54, copy letters sent from Royal Society administration | 10 January 1917-2 November 1917 |
| RR/13/179 | Referee's report by Ernest William Hobson, on a paper 'Memoir on the integration of partial differential equations second order in three independent variables when an intermediary integral does not exist in general' by Andrew Russell Forsyth | 4 January 1898 |
| RR/12/70 | Second letter from Ernest William Hobson, regarding a paper 'The stresses and strains in isotropic elastic solid ellipsoids in equilibrium under bodily forces derivable from a potential of the second degree' by Charles Chree | 16 January 1895 |
| RR/12/348 | Second referee's report by Ernest William Hobson and William Davidson Niven, on a paper 'On certain functions connected with tesseral harmonics, with applications' by A H Leahy | [1895] |
| RR/14/4 | Referee's report by Ernest William Hobson, on a paper [attributed] 'Tables for the solution of the equation d2y/dx2 + 1/x · dy/dx - (1 + n2/x2) y = 0' by W Steadman Aldis | nd [1898] |
| NLB/20/529 | Copy letter from Robert William Frederick Harrison, to Dr Ernest William Hobson, Fellow of the Royal Society | 15 May 1900 |
| RR/12/167 | Referee's report by Ernest William Hobson, on a paper 'On certain functions connected with tesseral harmonics, with applications' by A H Leahy | [1894] |
| RR/15/75 | Referee's report by Ernest William Hobson, on a paper 'Uber reihen auf der convergenzgrenze' by Emanuel Lasker | May 1900 |
| RR/12/66 | Referee's report by Ernest William Hobson, on a paper 'The stresses and strains in isotropic elastic solid ellipsoids in equilibrium under bodily forces derivable from a potential of the second degree' by Charles Chree | 7 November 1894 |
| RR/12/67 | Detailed referee's report by Ernest William Hobson, on a paper 'The stresses and strains in isotropic elastic solid ellipsoids in equilibrium under bodily forces derivable from a potential of the second degree' by Charles Chree | nd [1894] |
| RR/12/69 | Letter from Ernest William Hobson, regarding a paper 'The stresses and strains in isotropic elastic solid ellipsoids in equilibrium under bodily forces derivable from a potential of the second degree' by Charles Chree | 1 January 1895 |
| RR/12/331 | Referee's report by William Davidson Niven, on a paper 'On a type of spherical harmonics of unrestricted degree, order, and argument' by Ernest William Hobson | 28 February 1896 |
| RR/13/227 | Letter from George Howard Darwin, on behalf of the Committee, on a paper 'A Maya calendar inscription, interpreted by Goodman's tables' by Alfred Percival Maudslay to the Secretary of the Royal Society | June 1897 |
| RR/14/113 | Referee's report by Ernest William Hobson, on a paper 'On the numerical computation of the functions G0(x), G1(x), and Jn(xv¯i)' by W Steadman Aldis | nd [August 1899] |
| RR/15/5 | Referee's report by Ernest William Hobson, on a paper 'The theory of the double gamma function' by Ernest William Barnes | April 1900 |
| MC/19/438 | Letter from [Ernest William] Hobson,The Gables, Mount Pleasant, Cambridge, to [Robert William Frederick] Harrison | 15 July 1904 |
| MC/22/120 | Letter from [Ernest William] Hobson, The Gables, Mount Pleasant, Cambridge, to the Secretary of the Royal Society | 7 November 1907 |
| MC/22 | Volume 22 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1907 |