Letters from Sir Henry Keppel to Philip Lutley Sclater regarding the localities of the animals he sent to the gardens of the Zoological Society of London, and giving thanks for a card of admission to the gardens
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
Letters from Sir John Graham Kerr to Philip Lutley Sclater regarding lists of birds, his degree course, his collection of birds, and papers
Letter from Philip H Knight to Philip Lutley Sclater regarding his resignation as Fellow of the Zoological Society of London
Letters from Johann Ludwig Gerhard Krefft of the Australian Museum in Sydney, to Philip Lutley Sclater
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
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 Lee to Philip Lutley Sclater regarding suggestions from the manager of Land and Water about a monkey
Letter from William Douglas Legg to Philip Lutley Sclater regarding the decision by the Council of the Zoological Society of London to prohibit viewings of the feedings of the snakes
Letter from William Vincent Legge to Philip Lutley Sclater regarding descriptions of specimens