| RefNo | Title | Date |
| EC/1910/05 | Filon, Louis Napoleon George: certificate of election to the Royal Society | |
| IM/001414 | Filon, Louis Napoleon George | nd |
| NLB/23/1/148 | Copy letter from Robert William Frederick Harrison, to Louis Napoleon George Filon, Godwin House, St Augustine's Avenue, South Croydon | 2 October 1901 |
| NLB/23/1/128 | Copy letter from Robert William Frederick Harrison, to Louis Napoleon George Filon, [Fellow of the Royal Society], King's College, Cambridge | 28 September 1901 |
| NLB/24/776 | Copy letter from Robert William Frederick Harrison, to Louis Napoleon George Filon, [Fellow of the Royal Society], Godwin House, St Augustine's Avenue, South Croydon | 9 July 1902 |
| NLB/23/2/124 | Copy letter from Arthur William Rucker, to Louis Napoleon George Filon, King's College | 4 November 1901 |
| RR/15/186 | Referee's report by William Cawthorne Unwin, on a paper 'The elastic equilibrium of circular cylinders under certain practical systems of load' by Louis Napoleon George Filon | June 1901 |
| RR/15/189 | Referee's report by Karl Pearson, on a paper 'The elastic equilibrium of circular cylinders under certain practical systems of load' by Louis Napoleon George Filon | 7 July 1901 |
| RR/15/335 | Referee's report by George Hartley Bryan, on a paper 'On an approximate solution for the bending of a beam of rectangular cross-section under any system of load, with special reference to points of concentrated or discontinuous loading' by Louis Napoleon George Filon | August 1902 |
| RR/15/187 | Referee's report by John Perry, on a paper 'The elastic equilibrium of circular cylinders under certain practical systems of load' by Louis Napoleon George Filon | June 1901 |
| NLB/19/380 | Copy letter from Theodore E James, to Louis Napoleon George Filon, [Fellow of the Royal Society] | 9 September 1899 |
| NLB/16/222 | Copy letter from Robert William Frederick Harrison, to Professor G H Darwin, Fellow of the Royal Society | 23 February 1898 |
| NLB/16/76 | Copy letter from Robert William Frederick Harrison, to Professor G H Darwin, Fellow of the Royal Society | 26 January 1898 |
| NLB/16/344 | Copy letter from Arthur William Rucker, to Professor Pearson, Fellow of the Royal Society, and L N G Filon, [Fellow of the Royal Society] | 19 March 1898 |
| NLB/15/785 | Copy letters sent from Robert William Frederick Harrison, to Professor Andrew Russell Forsyth, Fellow of the Royal Society | 10 December 1897 |
| NLB/15/863 | Copy letter from Robert William Frederick Harrison, to Professor George Howard Darwin, Fellow of the Royal Society, Newnham College, Cambridge | 4 January 1898 |
| NLB/19/40 | Copy letter from Arthur William Rucker, to Professor George Carey Foster, Fellow of the Royal Society | 6 June 1899 |
| NLB/19/200 | Copy letter from an unknown correspondent, to Louis Napoleon George Filon, [Fellow of the Royal Society] | [11] July 1899 |
| NLB/19/401 | Copy letter from Theodore E James, to Professor Karl Pearson, Fellow of the Royal Society, Hampden Farm House, Great Missenden, Buckinghamshire | 19 September 1899 |
| NLB/19/342 | Copy letter from Arthur William Rucker, to Professor George Carey Foster, Fellow of the Royal Society | 11 August 1899 |
| NLB/19/482 | Copy letter from Robert William Frederick Harrison, to Sir George Gabriel Stokes, Fellow of the Royal Society | 12 October 1899 |
| NLB/19/598 | Copy letter from Robert William Frederick Harrison, to Louis Napoleon George Filon, [Fellow of the Royal Society] | 8 November 1899 |
| NLB/19/708 | Copy letter from Robert William Frederick Harrison, to Professor James Alfred Ewing, Fellow of the Royal Society, Langdale lodge, Cambridge | 28 November 1899 |
| NLB/28/843 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 4 June 1904 |
| NLB/23/2/316 | Copy letter sent from Joseph Larmor, to Louis Napoleon George Filon, Fellow of the Royal Society | 20 March 1903 |
| NLB/23/1/693 | Copy letter from Robert William Frederick Harrison, to Louis Napoleon George Filon, Godwin House, St Augustine's Avenue, South Croydon | 6 January 1902 |
| NLB/23/1/426 | Copy letter from Robert William Frederick Harrison, to Louis Napoleon George Filon, [Fellow of the Royal Society] | 12 November 1901 |
| NLB/25/567 | Copy letter from Robert William Frederick Harrison, to Louis Napoleon George Filon, [Fellow of the Royal Society] | 20 November 1902 |
| NLB/34/463 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary of the Royal Society | 26 January 1907 |
| NLB/35/565 | Copy letter from Joseph Larmor, to Dr Louis Napoleon George Filon | 14 June 1907 |
| NLB/42/377 | Copy letter from Robert William Frederick Harrison to Messrs Harrison & Sons | 1 June 1910 |
| NLB/42/403 | Copy letter from Theodore E James to Messrs Harrison & Sons | 6 June 1910 |
| NLB/45/619 | Copy letter from Joseph Larmor to L [Lousi] N [Napoleon] G [George] Filon FRS | 16 April 1912 |
| NLB/45/504 | Copy letter from Robert William Frederick Harrison to Dr L [Louis] N [Napoleon] G [George] Filon FRS | 19 March 1912 |
| RR/20/113 | Referee's report by Louis Napoleon George Filon, on a paper 'The transition from the elastic to the plastic state in mild steel' by A Robertson and G Cook | 19 April 1913 |
| RR/33/69 | Referee's report by Thomas Henry Havelock, on a paper 'The forces on a cylinder in a stream of viscous fluid' by Louis Napoleon George Filon | August 1926 |
| RR/28/127 | Referee's report by George Ingram Taylor, on a paper 'On the di-phasic nature of glass, as shown by photo-elastic observations' by Louis Napoleon George Filon and F C Harris | 29 April 1923 |
| RR/27/52 | Referee's report by Horace Lamb, on a paper 'On the stress-optical effect in transparent solids strained beyond the elastic limit' by Louis Napoleon George Filon and H T Jessop | March 1922 |
| RR/29/74 | Referee's report by Louis Napoleon George Filon, on a paper 'On the lateral vibrations of bars of conical type' by D M Wrinch | 17 March 1923 |
| RR/29/7 | Referee's report by Louis Napoleon George Filon, on a paper 'Stress distribution in a rectangular plate having two opposing edges sheared in opposite directions' by Charles Edward Inglis | March 1923 |
| NLB/61/744 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [Louis Napoleon George] Filon, FRS | 20 October 1921 |
| RR/41/85 | Referee's report by Richard Whiddington, on a paper 'The photo-elastic dispersion of vitreous silica' by Louis Napoleon George Filon and F C Harris | November 1930 |
| RR/14/158 | Referee's report by Karl Pearson, on a paper 'Experimental researches on the deflections of bent beams' by Louis Napoleon George Filon | nd [October 1899] |
| RR/14/156 | Detailed referee's report by Charles Chree, on a paper 'On the resistance to torsion of certain forms of shafting, with special reference to the effect of keyways' by Louis Napoleon George Filon | nd [1899] |
| RR/14/160 | Referee's report by John Perry, on a paper 'Experimental researches on the deflections of bent beams' by Louis Napoleon George Filon | nd [October 1899] |
| RR/13/248 | Letter 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 Society | 23 October 1897 |
| RR/13/254 | Referee'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 Filon | 23 February 1898 |
| RR/14/157 | Referee's report by Augustus Edward Hough Love, on a paper 'Experimental researches on the deflections of bent beams' by Louis Napoleon George Filon | 28 September 1899 |
| RR/14/155 | Referee's report by Charles Chree, on a paper 'On the resistance to torsion of certain forms of shafting, with special reference to the effect of keyways' by Louis Napoleon George Filon | nd [July 1899] |
| RR/13/252 | Referee'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 Filon | 12 February 1898 |
| NLB/61/778 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Louis Napoleon George] Filon, FRS | 24 October 1921 |
| RR/18/3 | Referee's report by Louis George Filon, on a paper 'The distribution of slide in a right six face subject to pure sheer' by Edward Neville da Costa Andrade | [December 1910] |
| RR/14/159 | Detailed referee's report by Karl Pearson, on a paper 'Experimental researches on the deflections of bent beams' by Louis Napoleon George Filon | nd [1899] |
| RR/27/51 | Referee's report by Ernest George Coker, on a paper 'On the stress-optical effect in transparent solids strained beyond the elastic limit' by Louis Napoleon George Filon and H T Jessop | 27 February 1922 |
| NLB/61/838 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [Louis Napoleon George] Filon, FRS | 3 November 1921 |
| RR/59/103 | Typed copy of referee's report by an Louis Napoleon George Filon, on a paper 'On the integration of the thermo-elastic equations' by J N Goodier | [1936] |
| RR/64/7 | Referee's report by Richard Vynne Southwell, on a paper 'On antiplane stress in an elastic solid' by Louis Napoleon George Filon | [February 1937] |
| NLB/62/321 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Louis Napoleon George] Filon, FRS | 23 January 1922 |
| NLB/62/290 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [Louis Napoleon George] Filon, FRS | 19 January 1922 |
| NLB/62/630 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [Louis Napoleon George] Filon, FRS | 28 March 1922 |
| NLB/62/440 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [Louis Napoleon George] Filon, FRS | 16 February 1922 |
| NLB/62/478 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [Louis Napoleon George] Filon, FRS | 21 February 1922 |
| NLB/62/604 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Louis Napoleon George] Filon, FRS | 21 March 1922 |
| NLB/64/290 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Louis Napoleon George] Filon, FRS | 8 March 1923 |
| NLB/64/327 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [Louis Napoleon George] Filon, FRS | 15 March 1923 |
| NLB/64/574 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Louis Napoleon George] Filon, FRS | 05 May 1923 |
| NLB/64/558 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Louis Napoleon George] Filon, FRS | 04 May 1923 |
| NLB/69/197 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof. [Louis Napoleon George] Filon, FRS | 27 January 1926 |
| NLB/64/679 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to [Sir Geoffrey Ingram] Taylor, FRS | 31 May 1923 |
| NLB/19/681 | Copy letter from Arthur William Rucker, to Louis Napoleon George Filon, [Fellow of the Royal Society] | 21 November 1899 |
| NLB/34/823 | Copy letter from Robert William Frederick Harrison, to Dr Louis Napoleon George Filon, [Fellow of the Royal Society], Vega, Blenheim Park Road, South Croydon | 14 March 1907 |
| NLB/42/433 | Copy letter from Robert William Frederick Harrison to J [Joseph] Barcroft, FRS [Fellow of the Royal Society] | 13 June 1910 |
| RR/14/153 | Referee's report by Augustus Edward Hough Love, on a paper 'On the resistance to torsion of certain forms of shafting, with special reference to the effect of keyways' by Louis Napoleon George Filon | 19 June 1899 |
| RR/39/75 | Referee's report by Louis Napoleon George Filon, on a paper 'The stress produced in a semi-infinite solid by pressure on part of the boundary' by Augustus Edward Hough Love | [June 1929] |
| RR/51/74 | Second referee's report by Louis Napoleon George Filon, on a paper 'On the stresses induced by flexure in a deep rectangular beam' by D B Smith and Richard Vynne Southwell | [September 1933] |
| RR/56/24 | Second referee's report by Louis Napoleon George Filon, on a paper 'On the action of viscosity in increasing the spacing ratio of a vortex street' by Stanley George Hooker | [October 1935] |
| RR/64/30 | Referee's report by Louis Napoleon George Filon, on a paper 'The elastic stability of a thin twisted strip—II' by Albert Edward Green | [February 1937] |
| NLB/19/413 | Copy letter from Robert William Frederick Harrison, to Professor Karl Pearson, Fellow of the Royal Society, Hampden Farm House, Great Missenden, Buckinghamshire | 26 September 1899 |
| NLB/19/424 | Copy 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/19/449 | Copy letter from Robert William Frederick Harrison, to Professor George Carey Foster, Fellow of the Royal Society | 5 October 1899 |
| NLB/34/875 | Copy letter from Robert William Frederick Harrison, to Dr Louis Napoleon George Filon, [Fellow of the Royal Society], 'Vega', Blenheim Park Road, South Croydon | 20 March 1907 |
| RR/17/162 | Referee's report by John Henry Poynting, on a paper 'On the dispersion in artificial double refraction' by Louis Napoleon George Filon | 5 March 1907 |
| RR/19/110 | Referee's report by Louis Napoleon George Filon, on a paper 'Note on the electric capacity coefficients of spheres' by Alexander Russell | [October 1912] |
| RR/17/161 | Referee's report by Alfred Edwin Howard Tutton, on a paper 'On the dispersion in artificial double refraction' by Louis Napoleon George Filon | [February 1907] |
| RR/33/43 | Referee's report by Louis Napoleon George Filon, on a paper 'The flexure of thick circular plates' by C A Clemmow | January 1926 |
| RR/13/255 | Referee'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 Filon | 18 February 1898 |
| RR/13/251 | Letter 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 Henrici | 26 January 1898 |
| RR/28/26 | Referee's report by Henry Louis Napoleon George Filon, on the Bakerian Lecture 'The distortion of an aluminium crystal during a tensile test' by Geoffrey Ingram Taylor and C F Elam | [January 1923] |
| RR/51/73 | Referee's report by Louis Napoleon George Filon, on a paper 'On the stresses induced by flexure in a deep rectangular beam' by D B Smith and Richard Vynne Southwell | [May 1933] |
| RR/44/88 | Referee's report by Louis Napoleon George Filon, on a paper 'The tightness of the teeth, considered as a problem concerning the equilibrium of a thin incompressible elastic membrane' by John Lighton Synge | February 1932 |
| RR/13/249 | Referee'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 Filon | 9 December 1897 |
| RR/13/250 | Referee'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 Filon | 2 January 1898 |
| 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/14/154 | Detailed referee's report by Augustus Edward Hough Love, on a paper 'On the resistance to torsion of certain forms of shafting, with special reference to the effect of keyways' by Louis Napoleon George Filon | nd [1899] |
| RR/15/188 | Referee's report by Augustus Edward Hough Love, on a paper 'The elastic equilibrium of circular cylinders under certain practical systems of load' by Louis Napoleon George Filon | 10 December 1901 |
| RR/15/334 | Referee's report by Augustus Edward Hough Love, on a paper 'On an approximate solution for the bending of a beam of rectangular cross-section under any system of load, with special reference to points of concentrated or discontinuous loading' by Louis Napoleon George Filon | 12 July 1902 |
| RR/26/134 | Referee's report by Louis Napoleon George Filon, on a paper 'On the free transverse vibrations of a uniform circular disc clamped at its centre; and on the effects of rotation' by Richard Vynne Southwell | 30 October 1921 |
| RR/27/3 | Referee's report by Louis Napoleon George Filon, on a paper 'On stresses in complete circular links stressed vertically in tension' by M A Ahmed | December 1922 |
| RR/31/55 | Referee's report by Louis Napoleon George Filon, on a paper 'On the stability under shearing forces of a flat elastic strip' by Richard Vynne Southwell and Sylvia W Skan | [February 1924] |
| RR/33/41 | Referee's report by Louis Napoleon George Filon, on a paper 'The flexure of thick circular plates (revised version)' by C A Clemmow | 1 May 1926 |
| RR/33/84 | Referee's report by Louis Napoleon George Filon, on a paper 'The properties of torsional vibrations reciprocating engine shafts. Part I' by George Ridsdale Goldsbrough | 27 May 1926 |
| RR/35/71 | Referee's report by Thomas Henry Havelock, on a paper 'On the second approximation to the "oseen” solution the motion of a viscous fluid' by Louis Napoleon George Filon | September 1927 |
| RR/35/72 | Referee's report by Geoffrey Ingram Taylor, on a paper 'On the second approximation to the "oseen” solution the motion of a viscous fluid' by Louis Napoleon George Filon | October 1927 |
| RR/37/98 | Referee's report by Louis Napoelon George Filon, on a paper 'The reflexion and transmission of electric waves at the interface between two transparent media' by Hector Munro MacDonald | December 1928 |
| RR/44/89 | Second referee's report by Louis Napoleon George Filon, on a paper 'The tightness of the teeth, considered as a problem concerning the equilibrium of a thin incompressible elastic membrane' by John Lighton Synge | 25 May 1932 |
| RR/45/115 | Referee's report by Louis Napoleon George Filon, on a paper 'On plasticity and creep in solids' by Harold Jeffreys | 26 July 1932 |
| RR/56/23 | Referee's report by Louis Napoleon George Filon, on a paper 'On the action of viscosity in increasing the spacing ratio of a vortex street' by Stanley George Hooker | [August 1935] |
| RR/56/129 | Referee's report by Louis Napoleon George Filon, on a paper 'Castigliano’s principle of minimum strain-energy' by Richard Vynne Southwell | 17 November 1935 |
| RR/59/104 | Referee's report by an Louis Napoleon George Filon, on a paper 'On the integration of the thermo-elastic equations' by J N Goodier | [June 1936] |
| RR/61/52 | Referee's report by Louis Napoleon George Filon, on a paper 'Relaxation methods applied to engineering problems. II. Basic theory, with applications to surveying and to electrical networks, and an extension to gyrostatic systems' by A N Black and Richard Vynne Southwell | August 1937 |
| RR/64/31 | Second referee's report by Louis Napoleon George Filon, on a paper 'The elastic stability of a thin twisted strip—II' by Albert Edward Green | [March 1937] |
| RR/64/79 | Referee's report by Louis Napoleon George Filon, on a paper 'On the statistical theory of isotropic turbulence' by Theodore von Karman and Leslie Howarth | [March 1937] |
| RR/64/100 | Referee's report by Louis Napoleon George Filon, on a paper 'The elastic stability of a long and slightly bent rectangular plate under uniform shear' by D M A Leggett | 14 March 1937 |
| NLB/46/700 | Copy letter from Robert William Frederick Harrison, to Professor Louis Napoleon George Filon, Fellow of the Royal Society | 18 October 1912 |