Three Letters from Dr. Hermann Schlagintweit, Sakünlünski, to Brian Houghton Hodgson to report on a field expedition in the hills of Nepal, including information on climate, rain, thunder, hail, beautiful and clear mornings. He sends copies of drawings and field information to Hodgson with a promise to send more. He thanks Hodgson for his assistance in sending his people for the expedition and for writing a letter to the king of Nepal and other people in Kathmandu. He also thanks Hodgson's staff in Darjeeling (Dārjiling) for their cooperation and help. He sends his best regards to Mrs. Hodgson with appreciation of her help and assistance. Handwritten, 4 sides, 1 side, 2 sides, dated [1855] (Exploration undertaken between 1854-1857)

Letter from Sir Frederick Halliday to Brian Houghton Hodgson concerning Hodgson's work on Darjeeling - whether to print it and circulate, or put as an article in the Journal of the Asiatic Society of Bengal. Handwritten, 3 sides, dated 25 March 1857.

Letter from George Cotton, Bishop of Calcutta, to Brian Houghton Hodgson to thank him for his gift of his library to St. Paul's School, Darjeeling. Handwritten, 4 sides, dated 6 September 1864.

Letter from W. Bromehead to Brian Houghton Hodgson to enclose a copy of the proceedings of St Paul's School, Darjeeling, in which Hodgson's gift of his library was acknowledged. Handwritten, 2 sides, dated 25 October, 1864.

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 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.