Letter listing for 1830–1839
- Sir Roderick Impey Murchison to Charles Babbage, 3 August 1838
- A note on the BAAS by Sir Roderick Impey Murchison, 3 August 1838
- Reverend Humphrey Lloyd to Sir John Frederick William Herschel, 1st baronet of Slough, 4 August 1838
- Sir John Frederick William Herschel, 1st baronet of Slough to Caroline Lucretia Herschel, 6 August 1838
- Sir Roderick Impey Murchison to Sir John Frederick William Herschel, 1st baronet of Slough, 8 August 1838
- Reverend William Venables Vernon Harcourt to John Phillips, before 10 August 1838
- John Phillips to Reverend William Venables Vernon Harcourt, 10 August 1838
- Caroline Lucretia Herschel to Sir John Frederick William Herschel, 1st baronet of Slough, 21 August 1838
- Sir Roderick Impey Murchison to Reverend William Venables Vernon Harcourt, 21 August 1838
- Sir Roderick Impey Murchison to Reverend William Venables Vernon Harcourt, 22 August 1838
- Charles Babbage to Reverend William Venables Vernon Harcourt, 24 August 1838
- Sir Roderick Impey Murchison to Reverend William Venables Vernon Harcourt, 24 August 1838
- Text of a speech by Sir Roderick Impey Murchison and Reverend George Peacock, 24 August 1838
- Text of a speech by Sir Roderick Impey Murchison and Reverend George Peacock, 24 August 1838
- Spencer Joshua Alwyne Compton, 2nd marquess of Northampton to Reverend William Venables Vernon Harcourt, 27 August 1838