The series consists of 38 letters from Joseph Dalton Hooker to Brian Houghton Hodgson. They have been organised mainly according to a previous listing made of the material, approximately by date.

Letter from Joseph Hooker to Brian Houghton Hodgson. He apologises for the paper he is using as all his writing paper has been used up on the accompanying journal which will explain to Hodgson what he has been doing. He writes of his surprise at the geology of the Himalayas and that he has collected rhododendrons and seeds for his father. He is thinking of staying a day or two at Pemiongchi. He writes about [Chamamaya] being a splendid fellow. There is a list of his food requirements and he asks Hodgson to send [Burchess] and Co. if he thinks appropriate. Handwritten, 1 piece, undated [1848-1850].

Letter from Joseph Hooker to Brian Houghton Hodgson. He writes that he had last written to Hodgson on his way to meet the Rajah. They have left [bamsong] after Christmas after a final interview with the Dewan who had been extremely attentive. The Rajah had told Archibald Campbell that Hooker could start for [Lachen] in spring. Hooker had informed the Dewan that he was certainly going. Hooker does not foresee much difficulty, Campbell having given the Dewan a warning. Hooker writes that Campbell had insisted on one who speaks Hindustani and the only one was the heir apparent's servant. Hooker continues to report on the negotiations between Campbell and the Rajah. He then talks about the geology and vegetation of the area he is travelling through. With accompanying envelope. Handwritten, 4 sides, dated 28 December 1848.

Letter from Joseph Hooker to Brian Houghton Hodgson in which he bemoans the dearth of European news. He writes about places he is trying to reach, the state of maps, of Campbell's report, the flora and animals of the region, and of his expected route. Handwritten, 3 sides, dated 14 January [1849].

Letter from Joseph Hooker to Brian Houghton Hodgson in which he thanks Hodgson for sending books and paper. He thanks Hodgson also for care of his specimens and for the compliments on Hooker's book. He writes about his discoveries and his father's rules on dedications. He writes about the company at Darjeeling and at some length about Archibald Campbell. Postscript on the front of the letter asks Hodgson to send empty notebooks and steel pens from his desk for which he encloses the key. With accompanying envelope. Handwritten, 8 sides, dated 7 August 1849.

Letter from Joseph Hooker to Brian Houghton Hodgson in which he writes that he is pleased to hear that Hodgson is active again and requests that Hodgson take care of himself particularly in the cold weather. He hopes to reach Hodgson by the 14-15th and they can go down to the foothills together. He hopes to get all his collections packed and sent off by the beginning of December. He is finding it hard to get plants and rhododendron seeds. He discusses the watershed with Hodgson; possibility of getting zoology specimens - too cold work he supposed. Hooker writes that Campbell sends his regards. He finishes by saying that Hodgsonii will stand. Handwritten, 5 sides, dated 29 October 1849.

This series covers all the other correspondence with the Papers of Brian Houghton Hodgson, It ranges in date from 1843 to 1880 and covers personal, political and research interests.

Three Letters from Thomas [ ] to Brian Houghton Hodgson concerning the identification of plant species. One has annotations by Hodgson. Handwritten, 2 sides, 3 sides, 1 side, all undated.

These Papers consists of letters sent by orientalists and literary figures to Bernard Quaritch, mainly concerning the obtaining or selling of oriental literature.

A series of four letters from Edwin Arnold to Bernard Quaritch, concerned with the obtaining and selling of books.