Posted for David Kohn mailto:[log in to unmask] List members may be interested in the following feature which appears in Nature for 4 August 2005. 'What Henslow taught Darwin: How a herbarium helped to lay the foundations of evolutionary thinking' by David Kohn, Gina Murrell, John Parker and Mark Whitehorn, which appears in Nature, Vol 436, 4 August 2005, pp 643-645. Anyone wishing to receive a .pdf of the article should contact Professor Kohn directly at mailto:[log in to unmask]