Letters from Abraham Dee Bartlett to Philip Lutley Sclater regarding the doors to the new elephant house, animal food consumption, the female rhinoceros, the mounted specimen of a young gorilla, authorisation to sell Alice the elephant to Mr Barnum, and the theft of an owl

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

Letter from the Conservator of Forests in Assam to the Divisional Forest Officer, Sibsagar Division regarding arrangements for catching a Rhino to be dispatched to the Zoological Gardens in Alipore on behalf of the Zoological Society of London

Papers regarding the presentation of the RIBA Architecture Award Elephant and Rhinoceros Pavilion

Letter from the New York Zoological Society regarding the acquisition of an Indian Rhinoceros

Correspondence between Vought, Fullbrook and Co and George Soper Cansdale regarding the offer of a Rhinoceros to the Zoological Society of London

Letter from Robert I Montgomery, Secretary of the Royal Zoological Society of Ireland, to Philip Lutley Sclater regarding the cost of the transit of a rhinoceros

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

Correspondence between Raymond Hook and Geoffrey Marr Vevers regarding offers of animals including a Rock Hyrax, a pair of Rhinos, Reticulated Giraffes and Grevy's Zebras