Letters from Frederick Courteney Selous to Philip Lutley Sclater regarding his papers, notes on his egg collecting trip to Asia Minor, admission to the Gardens of the Zoological Society of London, a donation towards the International Congress of Zoology, notes on the red Rhebuck, meetings the Zoological Society of London, the horns of a white rhinoceros, his election as a corresponding member of the Society and accounts of his travels

Letters from John Sabine regarding the housing of the Rhinoceros and Tapir, conversations with Fuller about a larger repository for the greater carnivores, committee meetings of the Zoological Society of London and the dismissal of the head gardener and his recommendation of Morris Burr as his successor

Letters from Lionel Walter Rothschild, 2nd Baron Rothschild, to Philip Lutley Sclater regarding an expedition to the Sandwich Islands, papers on birds of the Sandwich Islands, drawings of a Rail, ornithological exhibitions, the sale of a rhinoceros, his drawing of a rhinoceros to be published in the Proceedings of the Zoological Society of London, his Cassowaries at Tring, a transfer of Tragelaphus, Galapagos Tortoises, Eclectus Parrots, Lemurs and Zebras

List of the Officers and Servants of ZSL with the Salaries of each, 1 Oct 1836; List of Officers & Keepers – and date of appointment, Dec 1853; Income and Expenditure 1825-1857; Income and Expenditure 1825-1875; Return of the Garden Establishment showing Occupation, Rate of Wages, 8 Dec 1848; Quantities of Fruit & Vegetables consumed in the Society’s Gardens, 1898; Zoological Photographic Club’s Exhibition 1912 – Regulations; [Table of] Year, No. of Fellows, Income, Expenditure, Admissions to Gardens, 1825-1904; List of the principal buildings erected in the Society’s Gardens since 1860 and their cost, 1860-1883; Cost of principal buildings erected in the Society’s Gardens from 1859 to 1899; Notes on Garden Guide sales, 1903; Attendances at Lectures, 1882-1884, 1897-1899; Lectures Regulations, 1900; Amounts paid annually for rates, 1866-1884; Rules for Keepers living in the Lodge, 1910; Visitors and Receipts on Christmas Day, 1888-1908; Notes by A Thomson on injuries to keepers caused by Rhinoceros, Huanaco and Chimpanzee, 1907