Letter from Henry Thomas Colebrooke to Nathaniel Wallich in which he congratulates Wallich for his success in research in Nepal. Colebrooke discusses publications to send to Wallich. He again reiterates the need to send specimens directly to such institutions as the Linnaean and Geological Societies rather than to him personally. Handwritten, dated 31 July 1822, received 1 February 1823.

Letter from Henry Thomas Colebrooke to Nathaniel Wallich in which Colebrooke discusses the periodicals that are being sent and how much the remittance will cover. He writes that he has just learnt, with regret of the death of Dr Jack. Handwritten, dated 8 January 1823, received 17 June, 1823.

Letter from Henry Thomas Colebrooke to Nathaniel Wallich in which he thanks Wallich for his correspondence and specimens, and congratulates him on his progress in natural history. Colebrooke suggests a name for a plant that he has described and in the post script reflects and changes the name. He advises pursuing certain avenues in research. Colebrooke encloses a receipt for Wallich's fee for the Linnaean Society (not with letter). Handwritten, dated 8 June 1819, received 16 November 1819.

Letter from Henry Thomas Colebrooke to Nathaniel Wallich in which he thanks Wallich for his correspondence and his Geological and Botanical Despatches and for Mr D Scott's remarks. He enquires whether Scott would like to be a member of the Geological Society. He writes of Limestone specimens that Wallich sent and of that he is pleased that the Gayal cattle have not been sent. He suggests that Wallich might write to his relative, Mr James Gosling, at the Cape of Good Hope who would be happy to try any specimens in his garden that Wallich thinks could flourish there. He asks about various species and botanical drawings. Handwritten, dated 8 September 1819, received 16 March 1820.

Letter from Henry Thomas Colebrooke to Nathaniel Wallich acknowledging letters sent and stating that he has sorted Wallich's remittances and arranged for the periodicals he requests to be sent to him. He was pleased with the geological specimens sent to him, including gold from Tartary and specimens from Lieutenant Gerard and Mr Scott and Colebrooke has used the notes sent by Gerard to write a paper on the geology of the valley of the Sutlej. He has proposed Lt Gerard and Dr Jack as members of the Geological Society. He thanks Wallich for seeds sent but advises because of the cost to be careful in thinking through which to send. Handwritten, dated 9 January 1821, received 5 June 1821.

Letter from Nathaniel Wallich to Professor Henslow (Botanist on Indian plants) concerning specimens that Wallich is sending to him. He asks to be remembered to Mrs Henslow and remembers with gratitude their hospitality and treatment among the Professors at Cambridge. He asks that Henslow tell Professor Sedgwick that he has written to his friend Mr J Calder at Calcutta concerning the Poona Apophallite. Handwritten, dated 17 November 1831

Newspaper cutting for the sale of three items of correspondence from Henry Thomas Colebrooke to Dr Wallich dating from 1823-1837. Written in pencil beside the cutting, "Autograph Letters of Colebrooke, Wallich's Catalogue"

The collection consists of two series:

Three newspaper cuttings relating to Nathaniel Wallich: 1) Report of the Asiatic Society meeting of 11th February 1818 when Wallich submitted descriptions and drawings for Asiatic plants, and paper made from the bark of the paper shrub; 2) Advertisement for three botanical pamphlets by Wallich; 3) Advertisement for Wallich's Plantae Asiaticae Rariores, 1817