"Extracts of three letters from Mr. H. Colebrooke to Dr. W. Carey". These concern the appointment of Dr Wallich at the Botanic Gardens and are dated 6th January, 13 January and 26 January, 1817. At first Colebrooke would not recommend Wallich because he thought another eminent botanist had been appointed but on discovering that this botanist had no wish to travel to India, Colebrooke and Dr Fleming petitioned the Court of Directors, East India Company, with the support of Sir Joseph Banks, for Wallich to be appointed to the role. Handwritten, copied by unknown hand.

Letter from Henry Thomas Colebrooke to Nathaniel Wallich regarding providing an annual supply of seeds for his plantations in the Cape. He lists varieties that he would particularly like Wallich to send and asks that they be directed to James Gosling Esq., at the Cape of Good Hope. Handwritten from Cape Town, dated 10 April 1822.

Letter from Henry Thomas Colebrooke to Nathaniel Wallich concerning how the terms for distribution of plants and seeds is nearly agreed and that Colebrooke reports Wallich's friends are eager to receive their share. Colebrooke is petitioning for Wallich to have an assistant. Colebrooke is pleased that Wallich is pursuing introducing plantations of Sipos timber. In a postscript Colebrooke promises to send an account with Richardson's bill but meantime could Wallich return the first account as Colebrooke has mislaid his copy. Handwritten, dated 10 January 1824, received 19 May, 1824.

Letter from Henry Thomas Colebrooke to Nathaniel Wallich from Cape of Good Hope. Colebrooke has been more concerned with matters to do with his landed property than with botanical matters but has gathered some geological specimens. He requests that Wallich send seeds to the Cape to James Gosling, that he thinks might be profitable for the region. Handwritten, dated 12 March 1822.

Letter from Henry Thomas Colebrooke to Nathaniel Wallich in which Colebrooke is pleased that Wallich has now recovered from illness. He reports that the Nepal seeds have arrived and he has distributed them. He will get Mr Richardson to send further publications that Wallich has requested. He writes about Wallich's additions to Flora and other Supplementary papers that he has sent to Colebrooke. Colebrooke has circulated these to other botanists. Handwritten, dated 14 June 1823, received 6 October 1823.

Letter from Henry Thomas Colebrooke to Nathaniel Wallich in which Colebrooke thanks Wallich for his correspondence and the seeds he has sent. The one that Wallich has sent for the Botanic Garden at Copenhagen he has given to Dr Fleming to take. Colebrooke encourages Wallich to write to Fleming as Fleming was instrumental in Wallich keeping his position at the Botanic Garden. He reiterates his desire for Wallich to send living plants. Colebrooke also thanks Wallich for geological specimens and gives instructions as to how to package them correctly. Wallich has been proposed for the Linnean Society which will meet some weeks after the letter's date. Handwritten, dated 15 April, 1818 with further dating in Wallich's hand arrived 24 October.

Letter from Henry Thomas Colebrooke to Nathaniel Wallich. Colebrooke hopes that Wallich has returned from his Eastern excursion In good health. He writes that Wallich communication from Rangoon provided evidence of what may be found there. He discusses Richardson and whether to transfer Wallich's business to another bookseller. He thanks him for all his communications and adds that the copies of Wallich's Tentamen that Colebrooke received have been distributed as Wallich suggested. Handwritten, dated 15 March 1827, received 14 September 1827.

Letter from Henry Thomas Colebrooke to Nathaniel Wallich in which he confirms the remittance for the Botanic Library by the East India Company Court of Directors. Colebrooke is on board boat headed for the Cape where he will stay a short time before returning to Europe. Dated 18 December 1821, received 24 March 1822.

Letter from Henry Thomas Colebrooke to Nathaniel Wallich, pleased to hear that Wallich has resumed his role at the Botanic Gardens and thanking Wallich for his responses to Colebrooke's previous inquiries. He thanks Wallich also for sending seeds and that the plants that he sent are doing well at Kew. He asks if more can be sent. Wallich will be proposed for the Linnean Society after the Easter break and can also be proposed to the Geological Society. Colebrooke is keen to promote study on the geology of India and states information that he would like to collect. Colebrooke is pleased that Wallich is in contact with Mr Alexander of the Cape of Good Hope. He is also contemplating whether the "Gayal" would be suitable cattle for Cape of Good Hope and England and is looking into the possibility of shipping some heifers and steers. Handwritten, dated 18 March 1818, with Wallich's dating, arrived 28 July by Marchioness of Ely, answered 29 July by [Oriton]

Letter from Henry Thomas Colebrooke to Nathaniel Wallich in which he gives advice on when to send plants as the current specimens were all dead when he retrieved them from the Custom House. He writes of jealousy among the Directors of India House if plants arrive for private persons and so therefore asks Wallich to send specimens to them but to continue to send him seeds. He adds thanks for geological specimens and for Wallich to forward letters of acknowledgement to General Hardwick and Dr Adams. He asks whether the other gentlemen might be interested in joining the Geological Society. Handwritten, dated 20 January 1820, received 9 July 1820.