| RefNo | Title | Date |
| EC/1929/10 | Lang, William Dickson: certificate of election to the Royal Society | |
| RR/24/58 | Referee's report by Aubrey Strahan, on a paper 'The pelmatoporinae, an essay on the evolution of a group of cretaceous polyzoa' by William Dickson Lang | [December 1917] |
| RR/24/57 | Referee's report by Henry Woods, on a paper 'The pelmatoporinae, an essay on the evolution of a group of cretaceous polyzoa' by William Dickson Lang | [November 1917] |
| RR/W/1/18 | Letter from [William Dickson] Lang to Henry [Dale], regarding a paper 'Preliminary report on the Olduvai expedition 1931' by Arthur Tindell Hopwood | 4 June 1932 |
| RR/48/14 | Referee's report by William Dickson Lang, on a paper 'The lantern and girdle of some recent and fossil Echinoidea' by Herbert Leader Hawkins | [January 1934] |
| RR/49/72 | Third referee's report by William Dickson Lang, on a paper 'The extinct of rhinoceroses of Baluchistan' by Clive Forster-Cooper | 19 February 1934 |
| NLB/72/194 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Dr [William Dickson] Lang, FRS | 15 May 1929 |
| RR/58/68 | Referee's report by William Dickson Lang, on a paper 'Two new Echinoidea, Aulechinus and Ectinechinus, and an adult plated holothurian, Eothuria, from the Upper Ordovician of Girvan, Scotland' by Ernest William MacBride and William Kingdon Spencer | 31 March 1937 |
| RR/49/71 | Referee's report by William Dickson Lang, on a paper 'The extinct of rhinoceroses of Baluchistan' by Clive Forster-Cooper | [October 1933] |
| RR/49/70 | Second referee's report by William Dickson Lang, on a paper 'The extinct of rhinoceroses of Baluchistan' by Clive Forster-Cooper | 21 November 1933 |
| RR/56/65 | Referee's report by William Dickson Lang, on a paper 'On the tooth-replacement in theriodont reptiles' by Francis Rex Parrington | 6 September 1935 |
| RR/64/113 | Referee's report by William Dickson Lang, on a paper 'Two new Echinoidea, Aulechinus and Ectinechinus, and an adult plated holothurian, Eothuria, from the Upper Ordovician of Girvan, Scotland' by Ernest William MacBride and William Kingdon Spencer | 10 Septmber 1937 |
| RR/47/13 | Referee's report by William Dickson Lang, on a paper 'Fossils of the late pre-cambrian (newer proterogoic) Adelaide series, South Australia' by Tannatt William Edgeworth David and Robin John Tillyard | 22 June 1932 |
| RR/W/1/20 | Copy of referee's comments [by William Dickson Lang] on a paper 'Fossils of the late pre-cambrian (newer proterogoic) Adelaide series, South Australia' by Tannatt William Edgeworth David and Robin John Tillyard | [22 June 1932] |
| MC/29/89 | Letter from John W Evans, The Geologists' Association, University College, London, W.C, to the [Royal Society] | 6 February 1914 |
| RR/W/5/24 | Letter from [William Dickson] Lang to the Secretary of the Royal Society, regarding a paper 'The phylogeny of the ammonite family Liparoceratidae' by [Leonard Frank] Spath | 17 February 1937 |
| RR/W/5/23 | Original summary note from the Royal Society editorial department, for a paper 'The phylogeny of the ammonite family Liparoceratidae' by [Leonard Frank] Spath | February - April 1937 |
| RR/W/5/28 | Memorandum from [Ronald] Winckworth to Sir Arthur Smith Woodward regarding a paper 'The phylogeny of the ammonite family Liparoceratidae' by [Leonard Frank] Spath | 18 February 1937 |
| RR/W/5/37 | Copy letter from the Secretary of the Royal Society to [William Dickson] Lang, regarding a paper 'The phylogeny of the ammonite family Liparoceratidae' by [Leonard Frank] Spath | 7 April 1937 |
| RR/W/5/38 | Letter from [William Dickson] Lang to [Archibald Vivian] Hill, regarding a paper 'The phylogeny of the ammonite family Liparoceratidae' by [Leonard Frank] Spath | 5 May 1937 |
| RR/W/5/39 | Copy letter from the Secretary of the Royal Society to [William Dickson] Lang, regarding a paper 'The phylogeny of the ammonite family Liparoceratidae' by [Leonard Frank] Spath | 7 May 1937 |
| RR/W/5/40 | Copy letter from the Secretary of the Royal Society to Sir Arthur Smith Woodward, regarding a paper 'The phylogeny of the ammonite family Liparoceratidae' by [Leonard Frank] Spath | 7 May 1937 |
| RR/W/5/41 | Letter from Arthur Smith Woodward to [Archibald Vivian] Hill, regarding a paper 'The phylogeny of the ammonite family Liparoceratidae' by [Leonard Frank] Spath | 8 May 1937 |
| RR/W/5/42 | Postcard from [William Dickson] Lang to the Assistant Secretary of the Royal Society [Ronald Winckworth], regarding a paper 'The phylogeny of the ammonite family Liparoceratidae' by [Leonard Frank] Spath | 8 May 1937 |