| RefNo | Title | Date |
| RBO/15/24 | Occultation of Venus by the Moon from the meteorological diary of J F Weidler | 1729 |
| RBO/15/28 | Observations of the solar eclipse on 15 July 1730 by J F Weidler | 1730 |
| EL/W4/20 | Observations of a partial lunar eclipse at Wittemberg in Saxony on 2 October 1735 by Johann Weidler | 1735 |
| EL/W4/23 | Observations of the partial solar eclipse on 18 February 1737 at Wittenberg in Saxony by Johann Weidler | 1737 |
| EL/W4/9 | Observations of parhelia witnessed at Wittenberg in Saxony on 31 December 1735 and 11 January 1736 by Johann Weidler | 1735 |
| RBO/14/72 | Observations of the lunar eclipse on 9 August 1729 at Witteberg from J F Weidler to Hans Sloane | 1729 |
| RBO/17/24 | Account of the aurora borealis from J Frider. Weidler's meteorological journal | 1732 |
| MM/20/33 | Letter from Johann Friedrich Weidler to Cromwell Mortimer, Secretary, Royal Society | 2 February 1738 |
| MM/20/31 | Letter from Johann Friedrich Weidler to Cromwell Mortimer, Secretary, Royal Society | 17/28 October 1736 |
| RBO/18/58 | Scheme to show solar eclipses by J F Weidler | 1733 |
| LBO/23/51 | Copy letter from John Weidler, Wittemberg, to Cromwell Mortimer | 1 January 1737 |
| L&P/2/435 | Paper, 'An account of Johann Friedrich Weidler's book De ortu astronomiae' by William Stukeley | 21 February 1753 |
| CLP/8ii/22 | Paper, regarding observations of the occultation of Venus by the Moon by J [Johann Friedrich] Weidler | November 1729 |
| L&P/1/300/1 | Letter, 'Of the antiquity of figures' from Johann Friedrich Weidler to the Royal Society | 1744 |
| L&P/2/446 | Paper, 'An account of Institutiones geomertricae subterraneae (1751)' by Johann Friedrich Weidler | 1753 |
| CLP/4ii/14 | Paper, translation of Johann Freidrich Weidler's description of the aurora borealis at Wittemberg [Germany] | 1732 |
| MM/20/32 | Letter from Johann Friedrich Weidler to Cromwell Mortimer, Secretary, Royal Society | 1 January 1737 |
| CLP/8ii/23 | Paper, regarding the occultation of the Venus by the Moon on 29 September 1729 extracted from J F [Johann Friedrich] Weidler's diary | 1729 |
| EL/W4/21 | Paper, Notes of the total Eclipse of the moon of Sept 09 1736 in the morning observed at Wittemberg in Saxony' by J[ohann] F[riedrich] Weidler | 1736 |
| EL/W4/22 | Observations of the aurora borealis and the movements of Venus and Saturn by Johann Weidler | 1736 |
| EL/W4/10 | Translation of observations of parhelia witnessed at Wittenberg in Saxony on 31 December 1735 and 11 January 1736 by Johann Weidler | 1736 |
| CLP/8ii/17 | Paper, 'Observatio eclipsis lunae totalis anno 1729' [Observations of the total lunar eclipse of 1729] by J F [Johann Friedrich] Weidler | 1729 |
| EL/W4/11a | Translation of a letter, from Johann Weidler to Cromwell Mortimer, dated at Wittemberg | 1737 |
| L&P/1/300 | Paper, 'Of the antiquity of figures' by Johann Friedrich Weidler | 1744 |
| EL/W4/11 | Letter, from Johann Weidler to Cromwell Mortimer | 25 October 1736 |
| CLP/22ii/39 | Paper, Account of 'Observationes meteorologicae et astronomicae... [Meteorological and astronomical observations]' by [Johann Friedrich] Weidler | 1730 |
| EC/1732/05 | Weidler, Johann Friedrich: certificate of election to the Royal Society | 9 November 1732 |
| CLP/4ii/10 | Paper, scheme of the solar eclipse by J F [Johann Friedrich] Weidler | 2 May 1733 |
| CLP/8ii/29 | Paper, 'Typus eclipsis solaris observatae July 1730' [A type of solar eclipse observed on 15 July 1730 at Witteberg by J [Johann Friedrich] Weidler | 1730 |
| CLP/4ii/13 | Paper, description of the aurora borealis at Wittemberg [Germany] by Johann F [Freidrich] Weidler | 18 February 1732 |
| CLP/4ii/8 | Paper, 'Of the phaenomena of the northern lights observed for some months past at Wittenberg [Germany] taken from his meteorological journal' by J F [Johann Friedrich] Weidler | 1 December 1731 |
| EL/W4/14 | Translation of a letter, from Johann Weidler to Cromwell Mortimer, dated at Wittemberg | 1736 |
| EL/W4/13 | Letter, from Johann Weidler to Hans Sloane, dated at Wittemberg | 11 December 1732 |
| CLP/8ii/29/2 | Diagram, 'Typus eclipsis solaris observatae July 1730' [A type of solar eclipse observed on 15 July 1730 at Witteberg by J [Johann Friedrich] Weidler | 1730 |
| EL/W4/19 | Account of astronomical observations by Johann Weidler | 1735 |
| CLP/8ii/29/1 | Manuscript, 'Typus eclipsis solaris observatae July 1730' [A type of solar eclipse observed on 15 July 1730 at Witteberg by J [Johann Friedrich] Weidler | 1730 |
| RBO/14/106 | 'An account of a Treatise intitled: Jo Frider Weidleri Observationes meteorologicae et Astronomicae Annorum 1728 et 1729' by William Rutty | 1729 |
| RBO/21/48 | Account of a tract by J Weidler on the parhelia (mock suns) witnessed at Wittemberg | 1738 |
| EL/W3/154 | Extract of letters from Johann Friedrich Weidler to Dr [Johann Georg] Steigertahl | 1732 |
| EL/W4/3 | Translation of a letter, from Johann Weidler to Cromwell Mortimer, dated at Wittemberg | 1738 |
| EL/W4/8 | Translation of a letter, from Johann Weidler to Cromwell Mortimer, dated at Wittemberg | 1736 |