On hearing of CD’s work with Drosera, tells of his experiment showing extreme sensitivity of the iris of a dog’s eye to atropine. [See Insectivorous plants, p. 173.]

Asks what can be the meaning of appendages to tips of leaflets of enclosed Acacia or Mimosa.

Is at fibrin today.

Michael Foster suggests coagulation of protoplasm may be diseased, not digestive, symptom.

F. M. Balfour is at Kew today.

The Acacia must be Belt’s "Bulls’ horns".

The complexity of Utricularia has driven Frank and CD almost mad. Suspects it is necrophagous, i.e., it cannot digest, but absorbs decaying animal matter.

Foster is certainly in error. Every insect that Drosera catches causes aggregation.

She and her father have been counting insect remains on Pinguicula hairs.

Two Nepenthes have devoured two pieces of fibrin [sketch shows size] in three days.

Has CD any objection to JDH’s giving an account of CD’s Drosera observations at Belfast [BAAS meeting] in a résumé of pitcher-plant results ["Address to the department of botany and zoology", Rep. BAAS 44 (1874): 102–16]?

"It is grand about Nepenthes."

JDH is welcome to notice in any way any of CD’s published or unpublished results with insectivorous plants. Gives an abstract of his observations on Drosera.

Thanks CD for Coral reefs [2d ed. (1874)].

JDD will correct his misunderstanding of CD on one point in the next edition of his book [Corals and coral islands].

Suggests CD consult Charles Wilkes’s Narrative [1844] for more accurate observations on Pacific islands.

Thanks for CD’s son’s observations

and for allowing DAS to visit Down.

Stupefied by CD’s trouble and kindness. All he wanted for Belfast meeting was assurance that mention of published work on Drosera, etc., in Nature, etc., would not interfere with CD’s book.

Would like his Nepenthes results to go to CD or to Royal Society, but prefers CD take them.

Cephalotus very puzzling.

Peas and cabbage grow twice as fast after two days’ immersion in Nepenthes as when placed in distilled water, but four days’ immersion seems to kill them.

Has a splendid Australian Drosera twice as big as D. rotundifolia.

Is glad CD approves of his book;

has not yet done any more experiments on snake poison.

JDH should do as he likes with insectivorous plant materials.

He has always thought telling JDH what he has been doing was as good as publishing.

Cephalotus seems as horrid a puzzle as Utricularia.

Nepenthes will turn out a great job if the pitchers of different species act differently. JDH’s paper on Nepenthes [Rep. BAAS 44 (1874): 102–16] is too long for CD’s book. Well deserves a place in Philosophical Transactions.

Encloses a tracing of a portrait of John Bunyan showing the differences of the two sides of the face.

Encloses a copy of a letter from H. Spencer giving his opinion on GJR’s views on disuse and a draft of GJR’s reply to Spencer.

Gives details of the smallest micrococci distinctly discernible under a microscope.

Has been examining Utricularia minor. Same essential structure but catches smaller Entomostraca. One bladder had 24, another 20, and another 15 Entomostraca. "What slaughter! We must make out the functions of the beast––".

Advises GHD to get an eminent counsel. If counsel’s opinion is that the reviewer [Mivart, in "Primitive man", Q. Rev. 137 (1874): 40–77] has falsified GHD’s statements, GHD should send the opinion to the Quarterly Review and demand publication, and if refused publish elsewhere. Then CD must decide whether to cut John Murray [publisher of Q. Rev.] which will put CD in a nice perplexity [over his rights to the stereotyped editions of past works].

Has observed in his garden hive-bees using the holes bored at the base of flowers by humble-bees.

Orchids is at last sold out. Settles account.

The Origin [6th ed.] is making good [sales] progress.

Expression is not selling.

After taking advice he has decided to write an explicit denial and short account of his essay and send it to the Quarterly Review.

Hasty note to express his most decided opinion that letter [to Q. Rev.] should not give a sketch of GHD’s essay – only an explicit denial "& do not allude to me".