Letters from Gambier Bolton to Philip Lutley Sclater regarding alterations and additions to the gardens of the Zoological Society of London due to the decline in visitors

Letters from Arthur E Brown of the Zoological Society of Philadelphia, to Philip Lutley Sclater regarding the birth of an African elephant

Letter sent by G P Clifford to Philip Lutley Sclater regarding birds sent by the Otago Acclimatisation Society to the Zoological Society of London

Letter from George Mifflin Dallas to Philip Lutley Sclater regarding the proposal for a Zoological and Botanical garden in Central Park, New York

Letter from Charles Dickens to Philip Lutley Sclater sending thanks for the ticket for the gardens of the Zoological Society of London

Letters from Elizabeth Matilda Dickens to Philip Lutley Sclater regarding tickets for the gardens of the Zoological Society of London

Letters from Herbert Thomas Dicksee to Philip Lutley Sclater regarding tickets for the gardens of the Zoological Society of London and his etched plates of lions and tigers, proofs of which he offered to the Society

Report on a visit to Brookfield Zoo with Robert Bean

Correspondence with Budapest Zoological and Botanical Garden requesting aid

Correspondence with G S Mottershead regarding the International Zoo Year Book