| Reference number | Title | Date |
| RBO/19/57 | Observations of the Aurora Borealis witnessed in London from September 1735 to April 1736 by Andreas Celsius | 1736 |
| RBO/21/26 | 'Mr Eames's Account of a Dissertation containing Remarks upon the Observations made in France, in order to ascertain the Figure of the Earth, by Mr Celsius, intitled: De observationibus, pro figura Telluris determinanda...' | 1738 |
| RBO/21/32 | 'The continuation of the Remarks made by Mr Celsius on the Observations taken in France, in order to ascertain the true Figure of the Earth' abstracted by John Eames | 1738 |
| LBO/23/75 | Copy letter from Andreas Celsius to Cromwell Mortimer | 9 April 1737 |
| CLP/8ii/51 | Paper, 'Observations of the lunar eclipse of 15 March 1736 made at Mr Graham's House in Fleet Street' by [Andreas] Celsius | 1736 |
| EL/C3/9 | Translation of a letter, from Andreas Celsius to Cromwell Mortimer, dated at Uppsala | 1738 |
| EL/R2/50 | Extract of a letter, from Dr Nicolas Rosen to Andreas Celsius, dated at Uppsala | 1735 |
| EL/C3/34 | Translation of a letter, from Andreas Celsius to Hans Sloane, dated at Tornea | 4 December 1736 |
| MS/790/21 | Letter from Anders Celsius, Torne, to Martin Folkes, Vice President of the Royal Society, Crane Court, Fleet Street | 3 December 1736 |
| EL/C2/93 | Note extracted from a letter, from Andreas Celsius to Cromwell Mortimer | April 1736 |
| EL/C3/33 | Translation of an extract of a letter, from Andreas Celsius to Cromwell Mortimer, dated at the mountain of Korpicula | 1736 |
| EL/C3/22 | Translation of an extract of a letter, from Andreas Celsius to Cromwell Mortimer, dated at Stockholm | 24 May 1736 |
| EL/C3/10 | Translation of an extract of a letter, from Andreas Celsius to Cromwell Mortimer, dated at Uppsala | 2 October 1739 |
| EL/C3/31 | Translation of part of a letter, from Andreas Celsius to Cromwell Mortimer, dated at Uppsala | 1 March 1738 |
| EL/M3/31 | Extract of a letter, from Pierre Maupertuis to Andreas Celsius, dated at Paris | 21 March 1736 |
| EL/R2/49 | Extract of a letter, from Dr Nicolas Rosen to Andreas Celsius, dated at Uppsala | 1735 |
| EC/1735/11 | Celsius, Andreas: certificate of election to the Royal Society | 29 January 1736 |
| CLP/4ii/20 | Paper, 'Observationes de aurora boreali habita in Anglia' [Observations on an auroroa borealis in England] by Andreas Celsius | 1736 |
| CLP/4ii/21 | Paper, 'Observations of the aurora borealis made in England' [translation of 'Observationes de aurora boreali habita in Anglia'] by Andreas Celsius | 1736 |
| EL/M3/53 | Extract of a letter, from Pierre Maupertuis to Andreas Celsius, dated at Paris | 1736 |
| EL/M3/25 | Extract of a letter, from Pierre Maupertuis to Andreas Celsius, dated at Paris | 1735 |
| EL/C3/15 | Account of runic inscriptions from Helsingland (Hälsingland) by Andreas Celsius | 1735 |
| EL/C3/16 | Translation of Andreas Celsius's account of runic inscriptions from Helsingland (Hälsingland) | 1735 |
| CLP/16/51 | Paper, 'De runis Helsingicis' [Of the Hälsingland runes, Sweden] by Andreas Celsius | 1735 |
| CLP/16/51/2 | Figure, Hälsingland obelisk, Sweden by Andreas Celsius | 1735 |
| CLP/16/51/1 | Manuscript, 'De runis Helsingicis' [Of the Hälsingland runes, Sweden] by Andreas Celsius | 1735 |
| RBO/19/52 | 'Of the Runic Characters of Helsingland (northern Sweden)' by Andreas Celsius | 1735 |
| CLP/8ii/77a | Letter extract, 'Observatio Eclipseos Telluris Romae habita in aedibus eminentissimi cardinalis' [observations of the solar eclipse made at the house of an eminent Cardinal in Rome], from Didacus de Revillas [Diego Ravillas] to Eustachio Manfredi | [1734] |
| EL/C3/1 | Translation of a letter, from Andreas Celsius to Cromwell Mortimer, dated at Tornea | 1737 |
| EL/C3/30 | Translation of a letter, from Andreas Celsius to Cromwell Mortimer, dated at Tornea | 1737 |
| EL/M3/24 | Extract of a letter, from Pierre Maupertuis to Andreas Celsius, dated at Paris | 1735 |