Zoology Nepal I, 1824-1827; Ornithology & Mammalogy, Valley of Nepal II, 1824-1827. Note by Hodgson: "Crude beginnings - useless"

Letter from John Yelland, apologising for not being able to bring back any small Hawaiian birds for the Zoological Society of London

Letters from William Yarrell regarding a heraldic question raised by Edward Turner Bennett, an unspecified dispute which had been considered at a meeting of the Council at Grosvenor Square, and a manuscript of Walcott's 'British Birds' asking Bennett to allow the dates 1784 and 1785 to stand since Walcott left Teignmouth for Chelsea in 1786 and was resident in Chelsea in 1787

Working Party advising on the Snowdon Aviary.

Papers regarding bird nesting at Whipsnade Zoo

Correspondence between Cecil Stanley Webb and Geoffrey Marr Vevers regarding a proposed journey by C S Webb to British Guiana, with lists of birds, mammals and reptiles of Trinidad and Tobago. Also a letter regarding Zebras and Reticulated Giraffes

Articles of Agreement and correspondence between John Warwick with the Zoological Society of London and the Earl of Derby regarding a voyage to Egypt and Nubia to procure live animals and birds for the Zoological Society of Lonon

Guidance on substitute foods for birds during wartime

Letter from Edmond Warre to Philip Lutley Sclater regarding the donation of a bird to the Zoological Society of London

Letters from Alfred Russel Wallace to Philip Lutley Sclater regarding the purchase of a joint residential estate, extracts read at meetings of the Zoological Society of London, papers for the Proceedings of the Zoological Society of London and Natural Science, his publication on 'Monkeys - their structure, affinities and distribution', a shipment of birds for the Society, improvements to the Gardens of the Zoological Society of London, notes on the Umbrella Bird, his election as a Fellow, papers on marine mammals, opinions on theories by Darwin, Birds of Paradise, and a list of butterflies of Costa Rica