King-HeleD.Erasmus Darwin 1731–1802. London: Macmillan, 1963: 183.
6.
King-HeleD.Doctor of Revolution The Life and Genius of Erasmus Darwin.London: Faber and Faber, 1977: 361.
7.
CookGC.Mary Darwin's illness. Notes Rec R Soc Lond1996; 50: 59–63.
8.
CookGCKing-HeleD.Doctor Erasmus Darwin's death in 1802. Notes Rec R Soc Land1998; 52: 261–5.
9.
PeckTWWilkinsonKD.William Withering of Birmingham M.D., F.R.S., F.L.S.Bristol: John Wright and Sons Ltd, 1950: 239.
10.
King-HeleD.The 1997 Wilkins lecture: Erasmus Darwin, the lunaticks and evolution. Notes Rec R Soc Lond1998; 52: 153–80.
11.
AshtonTS.The Industrial Revolution 1760–1830. London: Oxford University Press, 1968: 135.
12.
SingerCUnderwoodEA.A Short History of Medicine (2nd edn). Oxford: Clarendon Press, 1962: 679–87.
13.
WitheringW.An Account of the Foxglove, and Some of its Medical Uses: With Practical Remarks on Dropsy, and Other Diseases.London: GGJ and J Robinson, 1785: 12–16.
14.
AronsonJK.An Account of the Foxglove and its Medical Uses 1785–1985.London: Oxford University Press, 1985: 280–91.
15.
DarwinE.An account of the successful use of foxglove, in some dropsies, and in the pulmonary consumption. Med Trans Coll Phys1785; 3: 255–86.
AshmunM.The Singing Swan: An Account of Anna Seward and Her Acquaintance with Dr Johnson, Boswell & Others of Their Time.London: Yale University Press, 1931: 298.
19.
PearsonH, ed. The Swan of Lichfield: A Selection from the Correspondence of Anna Seward.London: Hamish Hamilton, 1936: 316.
20.
SewardA.Memoirs of the Life of Dr Darwin, Chiefly During his Residence at Lichfield, with Anecdotes of his Friends, and Criticisms on his Writings.London: J Johnson, 1804: 430.