| RefNo | Title | Date |
| EC/1911/14 | Porter, Alfred William: certificate of election to the Royal Society | |
| MM/9/24 | Letter from Oliver Heaviside, Headley View, Newton Abbott, to AW Porter | 14 May 1901 |
| MM/9/39 | Letter from JJ Thomson, Trinity Lodge, Cambridge, to AW Porter | 5 January 1933 |
| MM/9/35 | Letter from Earl of Berkeley, Berkeley Castle, to AW Porter | 23 August 1931 |
| MM/9/28 | Letter from Earl of Berkeley, The Laboratory, Foxcombe, to AW Porter | 4 October 1916 |
| MM/9/26 | Letter from Earl of Berkeley, Marine Hotel, North Berwick, to AW Porter | 24 September 1916 |
| MM/9/34 | Letter from Earl of Berkeley, Berkeley Castle, to AW Porter | 2 August 1931 |
| MM/9/23 | Letter from JJ Thomson, Cavendish Laboratory, Cambridge, to AW Porter | 18 February 1898 |
| MM/9/33 | Letter from Earl of Berkeley, Berkeley Castle, to AW Porter | 20 July 1931 |
| MM/9/29 | Letter from Earl of Berkeley, The Laboratory, Foxcombe, to AW Porter | 16 October 1916 |
| MM/9/36 | Letter from Earl of Berkeley, Berkeley Castle, to AW Porter | 29 August 1931 |
| NLB/51/413 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society to Professor Alfred William Porter FRS | 15 March 1915 |
| NLB/11/44 | Copy letter from Herbert Rix, to Messrs Harrison & Sons | 5 April 1895 |
| NLB/63/491 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society and FRS; to Professor [Alfred William] Porter, FRS | 27 October 1922 |
| RR/17/337 | Referee's report by John Henry Poynting on a paper 'The osmotic pressure of compressible solutions of any degree of concentration, part II' by Alfred William Porter | April 1908 |
| NLB/32/299 | Copy letter from Joseph Larmor, to Professor Frederick Thomas Trouton, [Fellow of the Royal Society] | 15 February 1906 |
| NLB/35/384 | Copy letter from Joseph Larmor, to Alfred William Porter | [27] May 1907 |
| NLB/44/393 | Copy letter from Robert William Frederick Harrison [signed by Theodore E James] to Messrs Harrison & Sons | 3 July 1911 |
| NLB/44/391 | Copy letter from Robert William Frederick Harrison [signed by Theodore E James] to Messrs Harrison & Sons | 3 July 1911 |
| NLB/47/668 | Copy letter from Robert William Frederick Harrison to A [Alfred] W [William] Porter FRS | 11 March 1913 |
| NLB/47/300 | Copy letter from Robert William Frederick Harrison to A [Alfred] W [William] Porter FRS | 13 January 1913 |
| NLB/47/285 | Copy letter from Robert William Frederick Harrison to Professor A [Alfred] W [William] Porter FRS | 8 January 1913 |
| NLB/47/107 | Copy letter from Robert William Frederick Harrison to A [Alfred] W [William] Porter FRS | 2 December 1912 |
| NLB/48/88 | Copy letter from Robert William Frederick Harrison, to Professor Alfred William Porter, Fellow of the Royal Society | 9 May 1913 |
| NLB/48/498 | Copy letter from Robert William Frederick Harrison, to Professor [Alfred William] Porter, Fellow of the Royal Society | 12 July 1913 |
| NLB/48/826 | Copy letter from Robert William Frederick Harrison, to Professor [Alfred William] Porter, Fellow of the Royal Society | 20 October 1913 |
| NLB/51/221 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society to Professor Alfred William Porter FRS | 15 January 1915 |
| RR/17/75 | Referee's report by Hugh Longbourne Callendar, on a paper 'On the inversion points for a fluid passing through a porous plug, and their use in testing proposed equations of state' by Alfred William Porter | 10 February 1906 |
| NLB/60/840 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [Alfred William] Porter, FRS | 14 April 1921 |
| NLB/56/826 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [Alfred William] Porter, FRS | 3 June 1919 |
| NLB/56/892 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [Alfred William] Porter, FRS | 20 June 1919 |
| NLB/56/910 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [Alfred William] Porter, FRS | 25 June 1919 |
| RR/35/45 | Referee's report by Alfred William Porter, on a paper 'The cause of the colours shown during the oxidation of metallic copper' by F Hurn Constable | May 1927 |
| RR/20/156 | Referee's report by Alfred William Porter, on a paper 'On negative adsorption' by A M Williams | December 1913 |
| RR/55/75 | Referee's report by Alfred William Porter, on a paper 'Thermo-dynamics of stationary systems I—The thermo-element' by B Bružs | May 1935 |
| NLB/59/787 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Professor [Alfred William] Porter, FRS | 10 November 1920 |
| NLB/61/439 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [Alfred William] Porter, FRS | 8 May 1921 |
| RR/43/77 | Referee's report by Alfred William Porter, on a paper 'The viscosity of dilute solutions of strong electrolytes' by W E Joy and J H Wolfenden | August 1931 |
| RR/52/84 | Referee's report by Alfred William Porter, on a paper 'The freezing point of platinum' by F H Schofield | May 1934 |
| RR/42/37 | Referee's report by Alfred William Porter, on a paper 'The rate of distribution of dissolved gases within the blood' by Francis John Woresley Roughton | November 1931 |
| RR/42/36 | Second referee's report by Alfred William Porter, on a paper 'The rate of distribution of dissolved gases within the blood' by Francis John Woresley Roughton | December 1931 |
| NLB/60/189 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Alfred William] Porter, FRS | 20 December 1920 |
| RR/17/336 | Referee's report by Joseph Larmor, on a paper 'The osmotic pressure of compressible solutions of any degree of concentration, part II' by Alfred William Porter | 1 February 1908 |
| RR/46/30 | Referee's report by Alfred William Porter, on a paper 'On the diffuse double layer' by J Lens | [November 1932] |
| RR/20/105 | Referee's report by William Halse Rivers, on a paper 'Negative after-images and successive contrast with pure spectral colours' by Alfred William Porter and F W Edridge-Green | April 1913 |
| NLB/60/420 | Copy letter from William Bate Hardy, Secretary of the Royal Society; to Professor [Alfred William] Porter, FRS | 3 February 1921 |
| NLB/60/778 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [Alfred William] Porter, FRS | 5 April 1921 |
| NLB/61/790 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [Alfred William] Porter, FRS | 26 October 1921 |
| NLB/61/274 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [Alfred William] Porter, FRS | 13 June 1921 |
| RR/55/76 | Referee's report by Alfred William Porter, on a paper 'Thermo-dynamics of stationary systems II—The diffusion element' by B Bružs | May 1935 |
| NLB/61/383 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [Alfred William] Porter, FRS | 29 June 1921 |
| NLB/61/689 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Alfred William] Porter, FRS | 12 October 1921 |
| NLB/61/833 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Alfred William] Porter, FRS | 2 November 1921 |
| NLB/62/137 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [Alfred William] Porter, FRS | 8 December 1921 |
| NLB/62/334 | Copy letter from an unknown correspondent; to Professor [Alfred William] Porter, FRS | 27 January 1922 |
| NLB/63/873 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Alfred William] Porter, FRS | 13 January 1923 |
| AP/79/4 | Unpublished paper, 'Radiation from a spherical source and the distribution of energy in the normal spectrum' by L Silberstein | 1915 |
| NLB/57/788 | Copy letter from Sir James Hopwood Jeans, FRS, Secretary of the Royal Society; to Professor AW [Alfred William] Porter, FRS | 5 February 1920 |
| NLB/64/168 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [Alfred William] Porter, FRS | 15 February 1923 |
| NLB/63/686 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Alfred William] Porter, FRS | 01 December 1922 |
| NLB/68/287 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [Alfred William] Porter, FRS | 12 June 1925 |
| NLB/65/123 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to The Lord Rayleigh [Robert John Strutt], FRS | 4 August 1923 |
| NLB/67/119 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [Alfred] Porter, FRS | 28 October 1924 |
| NLB/65/795 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Lord Rayleigh [Robert John Strutt], FRS | 4 January 1924 |
| NLB/66/609 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Prof. [Alfred William] Porter, FRS | 5 June 1924 |
| EC/1911/15 | Porter, Alfred William: certificate of election to the Royal Society | |
| IM/GA/Russell/98190 | Porter, Alfred William | nd |
| MM/9/37 | Letter from Earl of Berkeley, Berkeley Castle, to AW Porter | 6 September 1931 |
| MM/9/27 | Letter from Earl of Berkeley, Marine Hotel, North Berwick, to AW Porter | 25 September 1916 |
| MM/9/31 | Letter from Oliver Lodge, Normanston House Lake, Salisbury, to AW Porter | 7 November 1928 |
| MM/9/38 | Letter from Earl of Berkeley, Berkeley Castle, to AW Porter | 11 September 1931 |
| MM/9/30 | Letter from Oliver Lodge, Normanston House Lake, Salisbury, to AW Porter | 5 November 1928 |
| MM/9/25 | Randal Thomas Mowbray Rawdon Berkeley, Eighth Earl of Berkeley, Foxcombe, to AW Porter | 29 May 1908 |
| MM/9/32 | Letter from Earl of Berkeley, Berkeley Castle, to AW Porter | July 1931 |
| RR/19/141 | Referee's report by Alfred William Porter, on a paper 'Physico-chemical determinations at high pressures by optical methods' by Walter Wahl | [May 1912] |
| RR/22/62 | Referee's report by Alfred William Porter, on a paper 'Thermal properties of carbonic acid low temperatures' by Charles Frewen Jenkin and David Randall Pye | 12 April 1915 |
| RR/49/79 | Referee's report by Alfred William Porter, on a paper 'The viscosity of strong electrolytes measured by a differential method' by W M Cox and J H Wolfenden | 15 August 1933 |
| RR/49/78 | Second referee's report by Alfred William Porter, on a paper 'The viscosity of strong electrolytes measured by a differential method' by W M Cox and J H Wolfenden | 10 November 1933 |
| MM/9/22 | Letter from JJ Thomson, Conway, to AW Porter | 26 March 1896 |
| PP/22/2 | Paper, 'On the flow in electric circuits of measurable inductance and capacity; and on the dissipation of energy in such circuits' by Alfred William Porter | 4 May 1893 |
| RR/19/16 | Referee's report by Alfred William Porter, on a paper 'Ionic size in relation to molecular physics, together with a new law relating to the heats of formation of solid, liquid, and ionic molecules' by William Robert Bousfield | [November 1912] |
| RR/20/77 | Referee's report by Alfred William Porter, on a paper 'The thermal properties of carbonic acid low temperatures' by Charles Frewen Jenkin and David Randall Pye | 16 March 1913 |
| RR/20/80 | Referee's report by John Henry Poynting, on a paper 'On the diffraction of light by particles comparable with the wave-length' by Bernard Augustus Keen and Alfred William Porter | October 1913 |
| RR/34/70 | Referee's report by James Alexander Murray, on a paper 'On the effects of beta rays from radium upon division and growth of cancer cells' by J C Mottram, G M Scott, Sidney Russ and Alfred William Porter | 22 March 1926 |
| RR/53/29 | Referee's report by Alfred William Porter, on a paper 'A study of the vapour pressures of magnesium, thallium, and zinc, and the determination of their chemical constants' by F F Coleman and Alfred Charles Glyn Egerton | 3 September 1934 |
| PP/22/2/1 | Manuscript, 'On the flow in electric circuits of measurable inductance and capacity; and on the dissipation of energy in such circuits' by Alfred William Porter | 4 May 1893 |
| PP/22/2/2 | Diagrams, experimental equipment and results by Alfred William Porter | 4 May 1893 |