Letters from J L Kier, building and civil engineering contractors, to Julian Sorell Huxley regarding timelines for the construction of buildings at London Zoo
Correspondence between Eunice Kidd, Chairman of the Small Livestock Sales Sub-Committee of the Red Cross Agriculture Fund, and the Zoological Society of London regarding a poultry sale held in the Gardens
Correspondence between Rafiq Khan and Geoffrey Marr Vevers regarding the sale of Zoological specimens to the Zoological Society of London, with a price list
Correspondence between Khan Wild Animal Park and George Soper Cansdale regarding Lesser Flamingos for the Zoological Society of London
Correspondence with Khan Wild Animal Farm regarding the supply of animals, such as two Royal Bengal Tiger Cubs which were sent to Dudley Zoological Society
Correspondence regarding an offer to supply Elephants and Rhinocersoses to the Zoological Society of London
Letter from Otto Kersten to Philip Lutley Sclater regarding his East African exploring project
Letter from W A Kerr to Philip Lutley Sclater resigning from the Fellowship of 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
Letters from James Kerr to Philip Lutley Sclater regarding the paper his son wrote for the Ibis, and the voyage of the Bolivia to Paraguay