Letters from Carl Jacob Sundevall, Director of the Royal Museum Stockholm, to Philip Lutley Sclater regarding specimens found in the Museum such as Galapagos birds
Letters from John Macallan Swan to Philip Lutley Sclater regarding a renewal of his card for annual study at the Zoological Society of London and recommendations for individuals to study in the Gardens
Letters from Sir Lawrence Alma Tadema regarding an unmounted lion's skin and a letter in support of an artist being allowed to study in the Zoological Gardens
Letters from Dorothy Tennant, Lady Stanley, to Philip Lutley Sclater requesting more tickets for admission to the Gardens of the Zoological Society of London. Also whether eggs of East Indian ducks could be purchased at the Zoological Society of London
Letters from James Thompson to Philip Lutley Sclater regarding the purchase of items for an expedition to India
Letters from Sir Charles Wyville Thomson to Philip Lutley Sclater regarding entrance to the Gardens of the Zoological Society of London, elections to the Council and his description of a porcupine
Letters from Sir William Hamo Thornycroft to Philip Lutley Sclater regarding tickets for admission to the Gardens of the Zoological Society of London in order to make sketches of the animals
Letters from Charles B Trollope to Philip Lutley Sclater regarding Mr Purdey's lease and the lease of the Zoological Society of London in Hanover Square and rear facing Oxford Street
Letters from Frederick Trotman to Philip Lutley Sclater regarding agreements for refreshment rooms in the Zoological Society's Gardens
Letters from the United Planters Association of Southern India to Philip Lutley Sclater regarding attempts to introduce appropriate varieties of Ladybirds from Australia for the extermination of certain scale pests