Giving the Royal Institution lecture, (for the Jubilee of Origin of Species) much easier than expected, audience of 800 people, resident Prof of Chemistry Sir James Dewar provided cocoa and sandwiches in his rooms afterwards; visit to the Museum (BMNH) to see Diplodocus, butterflies and New Guinea Bird of Paradise; visit by Sir William Preece and his son, discussion about William, his health, suggestion he learn signalling and try to get work in wireless telegraphy.

William's career, health, fees at sanatorium; wireless telegraphy; X-rays.

Sending copy of Pall Mall Magazine containing interview with and photos of ARW; description of Diplodocus skeleton at the Natural History Museum, donated by Carnegie; Birds of Paradise; meeting at NHM with Jordan and Rothschild who had brought some New Guinea butterflies for him to see, invitation from Rothschild to spend a week at Tring, may go in the summer; emergence of three small longicorn beetles from a clump of orchids sent from Buenos Ayres by John Hall, two caught and identified by British Museum as a species of Ibidion not in its collection; capture of a large orange and brown moth or butterfly which Rothschild thinks a Castnia, in the orchid house and a chrysalis on same orchid as the one harbouring the longicorns, has sent moth and chrysalis to Prof Poulton for the Oxford collection, amazement that the same plant should produce both a rare moth and beetle after a year in a greenhouse.

William's health, larynx, mediumistic healing, surgery; filing of papers and pamphlets; work on new book; encloses a "cutting of a rather old nigger story". Enclosures: letter from Dr A. Wallace, 39 Harley Street W London, 15 Mar 1909, to ARW re William's health; card recording an appointment for William with Dr St Clair Thomson.