Letter from Frederick Courteney Selous to Peter Chalmers Mitchell regarding his election to the Fellowship of the Zoological Society of London
Letter from J A Shepherd to Peter Chalmers Mitchell requesting a student ticket giving permission to sketch the animals at the Gardens of the Zoological Society of London
Letters, newspaper clippings and will of Herbert Spencer. The Zoological Society of London was one of 12 scientific societies which were beneficiaries of his estate
Letter from Arthur Smith Woodward to Peter Chalmers Mitchell regarding 'the Minchin case' and the investment of £250 in Exchequer Bonds under the control of the Secretary of the Zoological Society of London
Letter from Julian Sorell Huxley to Evan Morgan, 2nd Viscount Tredegar, regarding donations towards the construction of the new Elephant House at the Zoological Society of London
Correspondence between Julian Sorell Huxley and Stanley Reed regarding The Maharajah of Bhavnagar, plans for a new Elephant House at the London Zoological Gardens and a a request for a financial contribution from The Maharajah
Letter from the building contractors Rice and Son, to Julian Sorell Huxley regarding the construction of the new Elephant House
Correspondence between the Royal Institute of British Architects and Julian Sorell Huxley regarding a list of Rice contracts
Letters from David Seth-Smith to Julian Sorell Huxley regarding plans for the proposed new Elephant House and meetings of the Elephant House Committee
Letter from Jerrard Tickell to Julian Sorell Huxley regarding a visit by a group of visitors to the Lion House