Describes experiment in which Euphorbia and Drosophyllum roots were exposed to ammonium carbonate solution. Asks SHV’s opinion.

Has no objection to Édouard Heckel’s preface to the French translation of Movement in Plants.

Sends some additions for the French translation of Earthworms.

Wouls like a copy of the French translation of Movement in Plants sent to Gaston de Saporta, Charles Frédéric Martins and Charles Victor Naudin.

Writes regarding subscription to set up the Science Defence and Advancement Fund to protect investigators from anti-vivisectionists and to promote knowledge of the purpose and importance of vivisection.

Offers for sale a MS of lost Erasmus Darwin poem on materialism [Francis Darwin note: "Swindle"].

Thanks CD for support in his election as Linacre Professor at Oxford.

J. Y. Buchanan, of the Challenger, says deep-sea red mud is fine because, like CD’s vegetable mould, it has been digested by worms and echinoderms.

Visited by John MacNeile Price, the son of CD’s friend from Chile, Mr Price; the son is now Surveyor General of Hong Kong.