JDH thanks Asa Gray for his letter of 27 Aug. Mentions spiral vessels. Comments on English knowledge of foreign developments, comparing his systematic botany to the German way. Will be glad of a copy of Valron's[?] Index. Has received the Thistles & Torrey's sheets by Dix. Praises Belfast meeting, particularly lectures by [Thomas Henry] Huxley & [John] Lubbock. Apologises that Farlow's paper was not acknowledged. JDH is sending Gray a copy of his Belfast address, it will be published in THE PROCEEDINGS. Notices of Edwards' observations have been omitted in CURTIS'S BOTANICAL MAGAZINE, JDH implies because of a quarrel. JDH has stayed out of the Linnean Society row but is embroiled in conflict with [William] Carruthers who has complained to the Admiralty, in the name of the British Museum Trustees & through the Librarian Mr Winter Jones, that JDH has not been sharing botanical collections. Including unfounded appeals about the Welwitch collection, collections made by [William] Purdie & [Charles] Wilford, & JDH's own Antarctica collections; which were shared with Captain [James Clark] Ross. It is part of the campaign by Carruthers & [Richard] Owen to undermine JDH's position as a British Museum Trustee. Haveley[?] has also been drawn into the dispute. The illiberal museum policy is the real reason none of the Public Offices send specimens there. 'Old Gray' [John Edward Gray] will retire & be replaced by Gunther but Owen will not go until he has moved the [natural history] collection to the new building [Natural History Museum]. The natural history trusteeship, comprised of JDH, Duke of Devonshire, Duke of Argyll, Viscount Eversley, Sir P. Egerton, Sir G. Burrows is ignored. Thanks Gray for Fremontia seed, shared with [Gustave Adolphe] Thuret & [Thomas] Hanbury. He will continue to send seed to Bolander through the Smithsonian. Advises that Baker will send Refugia[?] & JDH will pay Leeman. Asks what lower Cryptogams of Wilkes' voyage have been published.