Welcome to The Sloane Letters Project

sloaneA pilot of this project, Sir Hans Sloane’s Correspondence Online, was first launched at the University of Saskatchewan in 2010 to coincide with the 350th anniversary of Sir Hans Sloane’s birth. The project was renamed The Sloane Letters Project when it moved to this site in 2016.

The correspondence of Sir Hans Sloane (1660-1753) consists of thirty-eight volumes held at the British Library, London: MSS 4036-4069, 4075-4078.  The letters are a rich source of information about topics such as scientific discourse, collections of antiquities, curiosities and books, patients’ illnesses, medical treatments and family history. Most of the letters were addressed to Sloane, but a few volumes were addressed to others (MSS 4063-4067) or written by Sloane (MSS 4068-4069).

So far, we have entered descriptions and metadata for Sloane MSS 4036-4053 and 4075, as well as several letters from each of the following: Sloane MSS 4054-4055, 4066, 4068-4069 and 4076. Several of these entries also include transcriptions. Further entries and transcriptions are being made available gradually.

Please, explore the website and database. You can search through the letters, learn about Sir Hans Sloane or the letters written to him, and peruse blog posts about interesting letters!

Random Letter


[fol. 198] Rome 7 July 1728 Sir I take ye liberty to adress you this packet for Dr. William Derham being ye observations of Monsigr Bianchini upon ye Jovial Satellites, which I reckon may be usefull unto ye Society, & consequently will bear the charge of its postage otherwise I would not be so indiscreet. The severall papers sent by sea for me are not yett arrived at Leghorne, & I wish these I have sent over the same way for ye use of ye society may have had a quicker passage. The Accademie of ye Instituto of Bologna, & the Professours of Padoua [sic] discover every day more upon examination the mistakes of Rizzetti about ye Opticks of Sr Isaac Newton, so that Vallisneri writes me about him, anche in questo modo si deventa famoro, & thus he is upon sending my two copys of his last printed works to be sent over by me to G. Britain, one for ye R.S. & another for you, whereof you shall in due time be informed, & Monsig. Bianchini will give me his new mapp of ye Globe of Venus as soone as he has an account the K. of Portugal has received his, to whom he has dedicated it, so if I can, I will send all together to ye R.S. You will have received the answers from the Professours of Padua which I sent to our President for you, & having at present no litteraire news to impart to you I Remaine Sir Your very humble servt Thomas Dereham

Read more- Letter 3478

Latest Statistics

Pages digitised
4,545 Document summaries
Documents transcribed
1,527 Medical Cases


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