3.
Downe, Kent: DownHouse,ErasmusDarwinRoom, Commonplace Book of Dr Erasmus Darwin, 33. 1777. Text and figures reproduced by kind permission of the Royal College of Surgeons of England.I am grateful to Philip Titheradge, Custodian of Down House, for allowing me to consult the Commonplace Book and for his assistance with the preparation of photographs, and to Desmond King-Hele, for helpful comments.
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