Sends CD his book of experimental work on fluids [Experimental researches into the properties and motions of fluids (1881)].

Draws his attention to a particular passage on liquid behaviour which, he speculates, may relate to the form of some lower plants.

Sends photograph of a wild goose that survived being shot by a nine-inch arrowhead.

Seeks a testimonial for the Chair of Geology at Edinburgh.

Perchloride of mercury applied to his lawn destroyed thousands of earthworms, but ruined the grass.

Benjamin D. Jackson will edit new Steudel’s Nomenclator.

JDH’s impressions of Lyell’s Life and letters, edited by Mrs K. M. Lyell [1881].

Concurs in CD’s criticism of Thomas Meehan [see 13360].

Sends CD a pamphlet on muscular conditions expressive of states of the brain

Observations on rattlesnakes

and on tunnels built by Brazilian ants.

Urges CD to write on vivisection for Nineteenth Century or suggest a competent scientific author. Forming an association to forward interests of vivisectionists.

Thanks CD for his support.

Asks CD for some references to aid his work. [Brief annotations for a reply by CD.]

Difficulty of using concrete instances of the benefit of vivisection in medical science.

Explains how to go about getting an attendantship at the British Museum.

Thanks CD for his endowment of new Steudel’s Nomenclator [later to become Index Kewensis].

K. White’s gruesome ballad "Gondoline" frightened JDH as a child.

Detailed criticism of Earthworms.

The author of a paper on the inferiority of women has cited CD’s Origin as her authority. CK wishes to know if she has satisfactorily represented CD’s views.

The Birmingham Natural History Society found the soft coral Virgularia mirabilis while dredging near Oban, Scotland. They resemble Beagle specimens from Bahia Blanca, which draw themselves into the mud when touched.

Discusses mule’s resemblance to parents.

Forwards observations from the Baron de Villa Franca relating to sugar-cane culture.

Discusses colour changes of plant colouring material.

Is doing much marine work from his yacht; asks whether CD has any suggestions for profitable observations.