Copies of letters regarding the drainage system of the gardens of the Zoological Society into Regent's Canal, with accompanying map
Letters from Alexander Agassiz to Philip Lutley Sclater about the collections of British Museum and Jardin du Plantes, Paris
Letters from Morton Allport to Philip Lutley Sclater about the introduction of salmon to the waters of Tasmania
Letters from James Anderson regarding a proposed Zoological Garden in Edinburgh, with a reply from Philip Lutley Sclater
Letters from John Anderson to Philip Lutley Sclater regarding the Indian Museum in Calcutta
Letters from Spencer Fullerton Baird of Washington to Philip Lutley Sclater regarding ornithology
Letters from Sir Samuel White Baker to Philip Lutley Sclater regarding notes and sketches of Hippotragus Bakeri
Letters from Sir Granville Ransome Bantock thanking Philip Lutley Sclater for free admission to the Zoological Gardens
Letters from Baring Brothers and Co. to Philip Lutley Sclater regarding the arrival of the ship Renshaw at St Katharine's Docks with the animals shipped by Mr Du Chaillu
Letters from Thomas George Baring to Philip Lutley Sclater regarding the Zoological Gardens at Calcutta