JDH writes to present General Jung Bahadur Rahan [Rana] Prime Minister of Nepaul [Nepal], his brothers, & other members of the Nepaul mission. JDH is indebted to JB for his 1848 Nepal trip. JB is also a friend to [Brian Houghton] Hodgson, [Archibald] Campbell & [Charles] Thoresby. JDH asks that they are shown the Himalayan plants [at RBG Kew] & that WJH takes a drive with them from Kew Gardens to Richmond Hill. Captain Kavanagh accompanies the gentlemen & can make arrangements. JDH suggests Dr [Nathaniel] Wallich & Royle meet the party at the Gardens.

Spoke too harshly about CD’s involvement in nomenclatural reform.

JDH used to think CD "too prone to theoretical considerations about species", hence was pleased CD took up a difficult group like barnacles. CD’s theories have progressed but JDH not converted. Sikkim has not cleared up his doubts about CD’s doctrines.

Argument with Falconer.

Charles Darwin [CD] has not been absent from JDH's thoughts during the long break in their correspondence. He probably spoke too strongly about CD's species work & barnacles. speculates that CD was once prone to theoretical considerations about species & unaware of certain difficulties which JDH thought a more intimate acquaintance with species might clear up. Hence was pleased CD took up a difficult group like barnacles. CD's theories have progressed but JDH is not converted. He thought the transitions from one form to another in Sikkim would be more apparent. CD reasons rightly about JDH's Yangma valley; it is undoubtedly a vast moraine. He rejects the Himalayas as an independent chain of mountains & seeks the axis of the great mountain system between the Yarou river & the plains of India. He considers the glaciers of the Himalayan range unrivalled & is convinced they are receding. Explains that it is a double chain likes CD's Andes. [Thomas] Thomson [TT] & [Hugh] Falconer [HF] both regard the greatest Asiatic axis as a sub meridional one. The whole mountain system is incredibly complicated & he exceedingly doubt's Humboldt's system of six Mountain chains. Letter continues under date of 7 Apr. JDH now with HF at Honorable East India Company Botanic Gardens. HF had kept all his letters & overland parcels for five months due to insane procrastination but is now forgiven. HF's society is as ever delightful. HF no longer associates with the Asiatic Society. JDH received CD's Feb letter today & learned that the cold water system has done him much good but is not a cure, JDH sends congratulations on the Darwins' seventh child. JDH came to Calcutta [Kolkata] to persuade Jung Bahadur [JB] to let him travel in Nepal but JB cannot guarantee his safety while absent in England. JDH will therefore go instead to Sylhet then the Khassya [Khasia] Hills & Munnipore [Manipur] with [TT].

JDH writes to his Father, William Jackson Hooker, about plans for the coming year & proposed trip to Nepal. Jung Bahadur [JB], Prime Minister of Nepal, & Thoresby will travel to England & bring letters. JDH plans to leave Calcutta [Kolkata] for Dorjiling [Darjeeling] on 9 Apr with [Thomas]Thomson & travel by water to Sylhet the Khassya & Munnepore. Comments on the work of Falconer & Griffiths in the Calcutta Botanic garden. Describes affect on resources from selling the garden's timber cheaply. Describes work to replace turpentine paths with leading walks as at RBG Kew, to replant the wilderness, & to construct a Palmetum, Pandanetum, & Arboretum. They are restoring Wallich’s summer house in the Nepal Garden. Falconer is getting on well with orchideae. Thoresby & General JB will advise on proposed trip to Nepal. Lord Dalhousie, Colvile & others encourage the trip, & advise JDH to seek permission from the Woods & Forests Department. JDH asks WJH to consult Prof. Henslow, Mr Phillipps & Frances Henslow on subject. He would not be able to leave Nepal until 18 Nov 1851. He would leave Ceylon [Sri Lanka], go to Bombay [Mumbai] & catch a steamer in Jan. Asks WJH to speak to Sir H. Willock, Royle & Wallich regarding Thomson’s furlough. Reminds WJH to thank Cecil Beadon for opium things. JDH criticises Bellenden Ker. Reports the Larch & Rhododendrons are successful but many died in the heat. His map of Calcutta is at the Surveyor General's & will then be sent to WJH. JDH's collections will be sent in Jan. He is angry not to be on the Athenaeum committee & will join the Oriental instead. Reports safe arrival of copies of RHODODENDRONS OF THE SIKKIM HIMALAYA & his Journal.

No summary available.

On returning from Calcutta [Kolkata] JDH is arranging his journey to Sylhet with Thomas Thomson [TT], travelling from Dulalgunge [Dhaulgani], Titalyah, to the Ganges via Malda, Gour & Rampore. Then to Dacca [Dhaka] & up the Soorma to Pundua in the Khassya Hills which they will ascend from Pundua to Churra [Cherrapunji]. JDH will send 40 baskets of Orchideae to Calcutta. JDH is waiting for glazed cases to arrive to transport his collections of Rhododendron dalhousieae, punctatum & argenteum. Sent with Booth's things to the Garrows [Garos]. Discusses Lobb's character. JDH sent his father, William Jackspm Hooker, a packet of Larch seeds. His are growing well in open air, & discusses Jock Smith's technique. JDH can only collect Orchideae. JDH spent two days at Cathcart's, discusses Cathcart's collection of Dorjiling [Darjeeling] plants & his team of artists. JDH has a dried herbarium specimen of Plectocomia. He has enclosed a raceme & wishes the Benthams to look at it. JDH thinks it is Uriceous family. JDH has decided against Nepal, despite Lord Dalhousie asking him not to give it up. Telescope & Actinometer are safe. JDH expects to leave on Wednesday & arrive in Pundua in 20 days.