Thanks GJR for his second letter replying to Butler [Nature 23 (1880–1): 335–6].

Thanks him for his letter in Nature [23 (1880–1): 336, concerning Samuel Butler’s Unconscious Memory]. Explains how revision in Krause’s part [of Erasmus Darwin] and the subsequent misunderstanding came about.

Thanks for work sent by GdeS and A. F. Marion [L’évolution du règne végétal 1 (1881)]. CD greatly pleased at boldness with which GdeS expresses his belief in evolution. Some of GdeS’s countrymen have been "a little timid" on this head.

Cannot help JP [with bird-powered flying machine].

Thanks for Evolutionist at large [1881]. Envies GA’s power of writing. Some statements are too bold, but several of the views are new to CD and seem "extremely probable".

Uncle Erasmus is ill.

Thanks WED for his trouble about the cottages.

He has signed the note to Higgins.

CD has used WED’s Rhododendron case in Earthworms [p. 69].

Is using paper triangles in experiments on intelligence of worms.

Queries account for book "Fauna Neapol. II"

Thanks for honour conferred upon him by the Otago Institute.

Acknowledges with thanks the honour conferred by the Entomological Club of New York in electing CD an honorary member.

Summarises the "remarkable facts about the movements of plants" in Fritz Müller’s letter of January [12996]. CD comments that Müller’s observations support the conclusion that he and Francis Darwin arrived at – that leaves go to sleep to escape the full effects of radiation.

AD exaggerates what CD has done for science.

On the Zoological Yearbook, CD thinks it would be an excellent plan to give an account of zoological publications from all countries in a single work.

CD interested by FM’s facts on movement of plants; has sent some to Nature ["Movement of leaves", Collected papers 2: 228–9]. Greatly admires FM’s work. Suggests an experiment to investigate movement in Phyllanthus.

Discusses acidity of earthworm castings. JHG’s reply will make him more cautious.

Would like to see W. A. Detmer’s paper [Landwirtsch. Versuchs-Stat. 14 (1871): 248–300] and S. W. Johnson’s work [How crops feed].

Comments on food value of white and brown bread.

Island life continues to stimulate: Wallace ignores effects of glaciers on alpine flora and generally exaggerates those of débâcles and wind dispersal. CD encourages JDH to prepare a geographical address including history of geographical distribution.

Describes lecture at Royal Institution by J. S. Burdon Sanderson on movement of plants and animals; JSBS’s preliminary part was so long that he never got to the plants.

Comments on the triumph of the ladies in the voting at Cambridge.

Mentions F. Galton’s visit to Down, a call on the Huxleys, and a visit with the Duke of Argyll.

Tells a story about the absent-mindedness of Burdon Sanderson.

CD tells how it came about that Anthony Rich bequeathed his house and land to THH.

Comments on the meaning of his definition of the term, "animal intelligence". Encloses further discussion from his forthcoming book [Earthworms].

Discusses dead earthworms on surface of ground after rainfall.

Describes experiments involving sensitivity of earthworms to light and how it reflects on their intelligence.

Comments on GJR’s view of animal consciousness. Mentions experiment on learning among worms.

Obliged for potatoes. Has instructed that they be planted and labelled.