- Richard Wolfgang Semon: In the Australian Bush…, 1899 – first English edition. £149.50
- R.B. Freeman: Darwin Pedigrees, 1984. £39.50
- John Livingston & Lister Sinclair: Darwin and the Galapagos, 1967. £14.95
- Henry Plotkin: Evolution in Mind, 1998. £4.95
- John Dupré: Darwin’s Legacy, 2006. £7.50
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