Citations: Anonym 1835: [Huxley, T. H.] The Entomologist's Monthly Magazine, Third Series, London 31, B15 10006, pp. 196
Anonym 1895: [Huxley, T. H.] The Entomologist's Record and Journal of Variation, London 7, B15 10005, pp. 24
Anonym 1895: [Huxley, T. H.] Journ. Bot. London 33, pp. 312
Gould, S. J. 1982: Charles der Große. Natur : Faszination ; Gesundheit ; Lebensart, München 1982 (4), S. 58-64, 13 059
Huxley, L. 1908: Life and letter of T. H. Huxley. 1-3 London, Macmillan & Co., 9+463, 476, 501 S. S.
M. F. 1896: [Huxley, T. H.] Proceedings of the Royal Society, London 59, pp. XLVI-LXVI
Meldola, R. 1895: [Huxley, T. H.] (The) Transactions of the Entomological Society of London for the Year ..., London, B15: 10001, pp. LXXI
Nordenskiöld, E. 1935: History of biology. London, pp. 488-491