William Derham to Hans Sloane – August 10, 1713
Item info
Date: August 10, 1713 Author: William Derham Recipient: Hans SloaneLibrary: British Library, London Manuscript: Sloane MS 4043 Folio: ff. 174-175
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Language
English
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Library
British Library, London
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Categories
Collections, Material Culture, Philosophical Transactions, Scholarship, Scientific
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Subjects
Entomology, Fleas, Insects, Microsopes, Scientific Instruments
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Date (as written)
August 10, 1713
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Standardised date
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Origin (as written)
Upm'r [Upminster]
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Others mentioned
Mr Chamberlayne Mr Waller Anna Derham
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Patients mentioned
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Transcription
[fol. 175] Sr Upm’r Aug 10 1713 I remember in some of the Transacti- ons there is an account of the Generation of Fleas, which it was never my fortune to see but once before now. And imagining therefore it may be a curiosity not unacceptable to your self, or some of your curious friends, I have sent you some of the Eggs & Maggots of Fleas, wch you will easily discern with the help of a Microscope; and very plainly, it you put some of them into one of Wilsons Sli- ders, & view them in his Microscopes, as I have done. I presume the present will not be the more acceptable by telling you they were the Product of a favourite Cat of a pretty young Lady, a good Fortune, bred among some Muslin, & the blew paper, in wch they now ly, in her Work-basket. There were (they tell me) thousands, but finding them to be Fleas they burnt most of them, forgetting me, till only a few were to be gotten, which you are a large Sharer in. I hope they will come alive to your hands, being very lively and brisk at their putting up. If they are a rarity. I desire Mr Waller may see them, as also Mr Chamberlayne if you meet with him timely, to whom be pleased to render my humble service accepta- ble from Sr Your much obliged humble servant Wm Derham My Wifes humble service & thanks to you; who is I thank God now in a good state of health.
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 (16571735), Oxford Dictionary of National Biography, Oxford University Press, 2004 [http://www.oxforddnb.com/view/article/7528, accessed 7 June 2011]).
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