| RefNo | Title | Date |
| RBO/21/42 | 'An Examination of Sea Water frozen and melted again, to try what quantity of Salt is contain'd in Such Ice, made in Hudson's Streights by Captain Christopher Middleton' | 1738 |
| EC/1737/01 | Middleton, Christopher: certificate of election to the Royal Society | 7 April 1737 |
| RBO/21/61 | 'The Use of a new Azimuth Compass for finding the Variation of the Compass or Magnetic Needle at Sea ...' by Captain Christopher Middleton | 1739 |
| RBO/21/22 | 'Observations of the Lunar Eclipse of September 8 1736 at Hudson's Bay; and of an uncommon Effect of Cold on the Magnetical Needle in a Voyage thither' by Captain Christopher Middleton | 1738 |
| RBO/19/70 | 'Observations made of the Latitude, variation of the magnetic Needle and weather by Captain Christopher Middleton in a voyage from London to Hudson's Bay Anno 1735' | nd |
| L&P/13/8 | Paper, 'Observations made of the latitude, variation of the magnetic needle and weather in a voyage from London to Hudson's Bay, 1735' by Christopher Middleton | 1736 |
| CLP/9ii/32 | Paper, 'Of the magnetic needle affeced by cold' by Christopher Middleton | 20 April 1738 |
| CLP/9ii/23 | Paper, 'A new and exact table collected from severall observations taken in four voyages to Hudsons Bay in North America from London shewing the variation of the magnetical needle or sea compass in the pathway to the said bay according to the severall lattitudes and longitudes from the years 1721 to 1725' by Christ [Christopher] Middleton | [1727] |
| CLP/9ii/24 | Paper, 'Observations on the weather in a voyage to Hudson Bay in North America in 1730' by Christ [Christopher] Middleton | [1731] |
| L&P/1/121 | Letter, 'Observations on board HMS Furnace, Churchill River, Hudson's Bay, and at Prince of Wales Fort, Churchill River, in 1741 and 1742' from Christopher Middleton to Hans Sloane | 1742 |
| CLP/8ii/71 | Paper, 'An observation of the eclipse of the Moon September 8 1736 made in Hudson's Bay [Canada]' by Christopher Middleton | 1738 |
| CLP/9ii/22 | Paper, 'A new and exact table collected from severall observations taken from the year 1721 to 1729 in 9 voyages to Hudson Bay North America by Capt C Middleton shewing the variation of the compass according to the lattitudes and longitudes under mentioned accounting the longitude from the meridian of London' by C [Christopher] Middleton | [1731] |
| CLP/9ii/31 | Paper, 'The use of a new azimuth compass for finding the variation of the compass or magnetic needle at sea, with greater ease and exactness, than by any ever yet contrived for that purpose' by Captain Christopher Middleton | [1739] |