Library: British Library, London

Manuscript: Sloane MS 4040

Folio: f. 18

Microfilm: The History of Science and Technology Series One: The Papers of Sir Hans Sloane, 1660-1753 From the British Library, London Part 1: Science & Society, 1660-1773 Reel 3 Sloane Mss. 4040, 4041 98461

Language: English

Letter Categories:
Royal Society
Trade or Commodities

Letter Subject:
Real Estate

Date of letter (as written): April 2, 1705 (Gregorian)

Standardised date: 1705-04-02

Letter Origin (as written): Upminster

Letter Destination (as written):

William Derham

Sir Hans Sloane

Others Mentioned:
Mr. Culverwell
Mr. Hatt
Mr. Reynolds
Mr. Shermin

Letter written about self or others: N/A

Single or Multiple Sufferers: N/A

Patients Mentioned in Letter:
No Patients Attached to this Letter


[fol. 18] Sr Upminster Apr: 2 1705 The next day after I saw you, my Relation Mr Hatt being at my house, I gave your note to him, as being the [?] able to serve you, by reason he lives upon the Spot, & his Lands border upon the Land you enquire after. By ye enclosed you will receive I hope what satisfaction you desire. If you do not, & I can be farther serviceable to you, you know whom you comand. There is one thing he does not mention in his Lr [letter], viz. That the greatest part of the Land is naturally poor, but one convenience is, yt it is near the Chalk-pits to improve it, wch ytlate Tenant Rey- nolds did. The present Tenant (Reynolds being dead) is one Culverwell. I thought I should in some short time have accomplished my experiment about Sounds. But I meet wth fresh mat- ters yt neither I, and for anger I know no body else was observed befor: wch will makes me cautious of determin- ing any thing precipitantly; & therefore I shall yet delay giving the Society an account of what I have done Among other things one is, That Storms do accelerate Sounds, wch I did not discover (only suspect) till last Fryday [?] the Guns at Blackhearth, wch I heard in 121 half seconds the wind being contrary, I heard in 114 half seconds wn the wind was very high & wish the same. But I could only hear one Gun ytI saw the Flash of, & yt in the day-time, the wind being very high. And therefore I must get more Guns from the prince , as Ld His Admiral; or from ye Board of Ordnance before I can determine any thing positively. Then I shall use my greatest care in all this matter, because I differ a little from the Head estimates [?], & more from others and consequently my own, & perhaps ye Societys reputation my be somewhat hurt by any neglect or want of an act [?]. I much long to know what the French say about this matter as also Shermins, or any other of the curious Modern Authors. But not hav- ing the Books, I beg the favour of you to give me an account of it, as full as your leisure will permit; wch will be a great obligation Sr Your obliged & humble servant Wm Derham

Other Notes:
Derham was a Church of England clergyman and a natural philosopher, interested in nature, mathematics, and philosophy. He frequently requested medical advice from Sloane, and likely served as a physician to his family and parishioners (Marja Smolenaars, "Derham, William (1657-1735)", Oxford Dictionary of National Biography, Oxford University Press, 2004 [, accessed 7 June 2011]).