Discusses effect of atropine solution on eye,

and effect of phosphate of ammonia solution on gland of Drosera.

Would like to see work by T. W. Engelmann and possibly one by Dr De Ruyter.

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.

No summary available.

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.

Thanks GJR for his letter, regrets pressure of other work prevents his giving GJR’s remarks the attention they deserve. GJR makes clearer how an organ that has started to decrease will go on decreasing.

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]?

WED encloses a letter from H. M. Wilkinson about Utricularia and sundew.

H. M. Wilkinson has examined bladders of Utricularia; doubts that they absorb or digest insects.

H. M. Wilkinson describes dragonfly trapped by sundew [Drosera].

"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JDH is welcome to notice in any way any of CD’s published or unpublished results with insectivorous plants.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.

JDH explains he has not written to Asa Gray recently because he is particularly busy during the absence of his aide, William Turner Thiselton-Dyer, who is at South Kensington. JDH is working on a botanical primer for the Macmillan series & doing experiments for himself & Charles Darwin on insectivorous or carnivorous plants: Cephalotes, Nepenthes & Sarracenia. Has neglected work on GENERA PLANTARUM. Has had difficulty getting good systematic contributions for the FLORA INDICA, Thiselton-Dyer & Hiern did good work but Edgeworth, Masters, Andrews & Lawson all needed a lot of correction. Tells Gray about his trip to Florence, Italy for a Congress, run badly by Filippo Parlatore who JDH calls a Tragopogon [also known as 'goatsbeard'] & a 'little toad'. During the trip he saw the Miss Horners, Bakle & his wife, & Mrs Harvey. He also went to Paris, Nimes, Montpelier, Antibes, Hanbury's brother's place near Montara, Genoa, Spezzie [La Spezia] & Pisa & returned via Venice, the Brenner [Pass] Munich & Paris. [Letter appears incomplete. It bears no signature but is written in the hand of Joseph Dalton Hooker.]

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.

Is glad CD approves of his book;

has not yet done any more experiments on snake poison.

Asks for the specific gravity of common phosphate of ammonia.

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.

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

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.

JDH informs Sir William Turner Thiselton-Dyer that Lord Hatherley has found in George Bentham's favour on all points [regarding the amendment of the Linnean Society by-laws]. JDH still hopes [Marcus Manuel] Hartog will accept the post [of Assistant Director, Peradeniya Botanic Garden] in Ceylon [Sri Lanka]. In a post script JDH briefly discusses a recent experiment with carnivorous plants: Nepenthes rafllesiana & phyllamphora & mentions the difficulty of studying Darlingtonia & Cephalotus.

No summary available.

Asks for a specimen of Pinguicula.