Letters from George Gulliver to Philip Lutley Sclater regarding his papers and the anatomy of the Hornbill
Letters from Albert Carl Ludwig Gotthilf Gunter to Philip Lutley Sclater regarding his papers for the Proceedings of the Zoological Society of London, Dr Gray's paper on Chilean Deer, Krefft's, discovery of the Ceratodus Fosteri, plates of Swinhoe's snakes, salmonoids, heterodon dorbignyi and euophrys modestus
Letter from George Stewardson Brady to Philip Lutley Sclater regarding contributions to the Proceedings of the Zoological Society of London
Letters from Sir Richard Owen to Philip Lutley Sclater on subjects such as plates of the Dodo, papers on bird bones, notes on the dissection of a penguin, cetacean drawings, chambered shells, drawings of birds from Madras, photographs of harpagornis and his papers on diornis
Correspondence with Francis Hemming regarding his report on source papers in the structure of science, meeting of the Zoological Record Committee, memorandums on the Zoological Record, conditions of the Fellowship of the Zoological Society of London, revision of the Bye-Laws, the Secretaryship, visits to Whipsnade, questions to be put to candidates by the President, meetings of the Council and a paper titled 'An Auxiliary Method of Taxonomic Descrption