Letters from Henry Lawson to Philip Lutley Sclater requesting a list of the animals at the gardens of the Zoological Society of London
Letter from Henry Law to Philip Lutley Sclater regarding the drainage and water supply of the Zoological Gardens
Letters from Sir Edwin Ray Lankester to Philip Lutley Sclater regarding a house for tropical apes in the gardens of the Zoological Society of London, P T Barnum, and papers on okapi
Letter from Charles Landseer of the Royal Academy, to Philip Lutley Sclater regarding cards of admission to the Gardens of the Zoological Society of London
Letters from Johann Ludwig Gerhard Krefft of the Australian Museum in Sydney, to Philip Lutley Sclater
Letters from Christian Ferdinant Friedrich Krauss to Philip Lutley Sclater
Letters from Francis Knollys to Philip Lutley Sclater regarding a male kangaroo and an alligator to be sent from Sandringham to the Zoological Society of London
Letters from Charles Kingsley to Philip Lutley Sclater regarding naturalists in Denver, Colorado, specimens for the Zoological Society of London, and the paper of the ex-governor of Trinidad
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