Letters from William Henry Hudson to Philip Lutley Sclater regarding cuckoos, shipments of birds to the Smithsonian, Woodpeckers in Argentina, Blackbirds and other birds
Letter from William Henry Hudson to Peter Chalmers Mitchell enclosing a copy of Birds of La Plata for the Library of the Zoological Society of London
Letters from Thomas Henry Huxley to Philip Lutley Sclater asking about available birds for dissection, meetings of the Council of the Zoological Society of London, proofs and woodcuts for a paper, specimens of birds and the Marine Biological Association
Correspondence between James & Hodder and Geoffrey Marr Vevers regarding the collection of mammals and birds from the Philadelphia Zoo which arrived on the S.S.Sofie Bakke for the Zoological Society of London
Letter from H C James to David William Mitchell regarding his dispatch to Calcutta from Darjeeling, and birds that are destined for the Zoological Society of London
Correspondence regarding stocks of animals and birds for sale to the Zoological Society of London
Letters from Sir Harry Hamilton Johnston to Philip Lutley Sclater regarding posts open at the Foreign Office for the consular department, the Kilimanjaro Expedition, papers on birds, mammals and insects from Kilimanjaro, medals to be awarded for services to zoology, animals and specimens sent by Mr Johnston to the Zoological Society of London, drawings of animals, a visit to the gardens of the Zoological Society of London by the Katikiro of Uganda and his party, and his election as a member of the Council and attendance at meetings, and the Zoological Club
Correspondence with Terry Jones regarding birds requested by the Zoological Society of London
Letters from Sir John Graham Kerr to Philip Lutley Sclater regarding lists of birds, his degree course, his collection of birds, and papers
Correspondence between Richard M Lockley of The Pembrokeshire Bird Protection Society and Julian Sorell Huxley requesting permission to nominate Huxley as Vice-President