Marcus Manuel Hartog was the second son of the late Professor Alphonse Hartog and elder brother of Mr. P. J. Hartog, formerly Academic Registrar of London University and now Vice-Chancellor of the University of Dacca. Educated at the North London Collegiate School, University College, London, and Trinity College, Cambridge, where he took a first class in the National Science Tripos in 1874, he went out in the same year to Ceylon as assistant to the Director of the Royal Botanic Gardens there — a post that he held for three years. On his return he became demonstrator, and afterwards lecturer, in natural history at Owens College, Manchester, and in 1882 he began an association of more than 40 years with the educational life of Cork. For 27 years he was Professor of Natural History in Queen's College, there and in 1909 he proceeded to the chair of Zoology in University College. When in 1921 he vacated the appointment, Dr. Hartog was made Emeritus Professor.
Professor Marcus Hartog, the authority on natural history, has died in Paris.