Letter from Dr E J Allen, FRS, Director of the Marine Biological Association of the United Kingdom, regarding the question of supply of living specimens to the Aquarium
Diary of health and treatment of animals written by Mr Charles Spooner, medical attendant" at London Zoo from 1829-1833. Covers 2 July 1829 - 26 Feb 1831."
Letter from Sir John Bland Sutton, Pathologist, to Philip Lutley Sclater requesting extra tickets for entry to the Zoological Society of London to perform post mortem inspections
Letter from M Swainson regarding the collection of fish purchased from the Zoological Society of London from the museum of Mr Guilding
Letter from Cuthbert Edward Swan to Peter Chalmers Mitchell regarding his subscription to the Zoological Society of London
Letter from Cuthbert Edward Swan to Philip Lutley Sclater regarding his ticket for entrance to the Gardens of the Zoological Society of London
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
Correspondence with G H Swynerton regarding the transport of animals
Letter from John Frederick Joseph Sykes of Saint Pancras Health Department, to Philip Lutley Sclater regarding the drainage of the Gardens of the Zoological Society of London
Letter from William Henry Sykes to Philip Lutley Sclater regarding the Indian Museum