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Glendenning PH . Dr Thomas Dimsdale and smallpox inoculation in Russia. J Hist Med. 1973; 28: 109–25

Dimsdale E. An English Lady at the Court of Catherine the Great: The Journal of Baroness Elizabeth Dimsdale. Cross AG , Ed. Cambridge: Crest, 1989: 40

Dashkova ER . The Memoirs of Princess Dashkova. Fitzlyon K , Ed. and trans. London: J Calder, 1958: 139

Ibid.: 194

Ibid.: 225

Alexander JT . Catherine the Great: Life and Legend. Oxford: Oxford University Press, 1989: 225

Ibid.: 272

Hill B. An 18th century cure-all. Hist Med. 1961; 1: 24–6

Ségur LP , Comte de. Mémoires ou souvenirs et anecdotes, 3 vols. Paris: A Eymery, 1826: vol. III, p. 73

Rogerson J. Letters. National Library of Scotland Mss 3942, ff. 137–41, 277–8

Harris J. Diaries and Correspondence of the 1st Earl of Malmesbury. 3rd Earl of Malmesbury, ed. 4 vols. London: R Bentley, 1844: vol. I, p. 189

Corberon B M-D , Chevalier de. Un diplomate français à la cour de Catherine II 1775–1780. Laband LH , Ed. 2 vols. Paris, 1901: vol. I, p. 185

Steuart AF . Scottish Influences in Russian History. Glasgow: J Macalose, 1913: 121–3

Wilmot M. The Russian Journals of Martha and Catherine Wilmot 1803–1808. Marchioness of Londonderry, Hyde HM , Eds. London: Macmillan, 1934: 23

Ségur LP , Comte de (op. cit. ref. 9): vol. III, p. 228

Clarke Ed. Travels in Various Countries of Europe, Asia and Africa, 6 vols. 4th edn. London: T Cadell and W Davies, 1816: vol. I, p. 113

Alexander JT (op. cit. ref. 6): 319

Ibid.: 324–5

Prevost WAJ . Dumcrieff and its owners. Transactions of Dumfriesshire and Galloway Natural History and Antiquarian Society 1968; 45: 200–10

de Joyneville C . Life and Times of Alexander I, Emperor of all the Russias, 3 vols. London: Tinsley Bros, 1875: vol. I, pp. 147–51

Wilmot M (op. cit. ref. 14): 330