Knowlton, Charles. 1877. Fruits of philosophy: an essay on the population question. London: Freethought Publishing Company.
Manvell, Roger. 1976. The trial of Annie Besant and Charles Bradlaugh. London: Elek Books.
Brodie, Janet Farrell. 1994. Contraception and abortion in nineteenth-century America. Ithaca and London: Cornell University Press.
Harrison, Frederic. 1893. Annals of an old manor-house: Sutton Place, Guildford. London: Macmillan and Co.
Forms of flowers US ed.: The different forms of flowers on plants of the same species. By Charles Darwin. New York: D. Appleton and Company. 1877.
Busch, Otto. 1877. Arthur Schopenhauer: Beitrag zu einer Dogmatik der Religionslosen. Heidelberg: F. Bassermann.
Bessey, Charles Edwin. 1880. The supposed dimorphism of Lithospermum longiflorum. (L. angustifolium Michx. of Gray’s synoptical flora.) American Naturalist. 14: 417–21.
Roberts, William. 1877. On spontaneous generation and the doctrine of contagium vivum. London: Smith, Elder & Co.
Martinelli, Alfred. 1879. On the germination of a seed. Journal of the Queckett Microscopical Club 6 (1879–81): 12–17.
Albin, Eleazar. 1731–8. A natural history of birds. 3 vols. London: the author.
Brunton, Thomas Lauder and Fayrer, Joseph. 1873–4. On the nature and physiological action of the poison of Naja tripudians and other Indian venomous snakes. [Read 19 June 1873 and 22 January 1874.] Proceedings of the Royal Society of London 21 (1872–3): 358–74; 22 (1873–4): 68–133.
Allen, Grant. 1877. Physiological aesthetics. London: Henry S. King & Co.
Hopwood, Nick. 2015. Haeckel’s embryos: images, evolution, and fraud. Chicago and London: University of Chicago Press.
Hooker, Joseph Dalton. 1867a. On the struggle for existence amongst plants. Popular Science Review 6: 131–9.
[Gray, Asa.] 1876d. Darwin’s Insectivorous and Climbing plants. Nation, 6 January 1876, pp. 12–14; 13 January 1876, pp. 30–2.
Molteno, Percy Alport. 1900. The life and times of Sir John Charles Molteno K.C.M.G, first premier of Cape Colony, comprising a history of representative institutions and responsible government at the Cape and of Lord Carnarvon’s confederation policy & of Sir Bartle Frere’s high commissionership of South Africa. 2 vols. London: Smith, Elder & Co.
Owen, Janet. 2000. The collecting activities of Sir John Lubbock (1834–1913). Durham theses, Durham University. Available at Durham E-Theses Online: http://etheses.dur.ac.uk/1603/
Anning, S. T. and Walls, W. K. J. 1982. A history of the Leeds School of Medicine: one and a half centuries, 1831–1981. Leeds: Leeds University Press.
Tennyson, Alfred. 1850. In memoriam. London: E. Moxon.
Farrer, James. 1866. Notice of recent excavations in Chedworth Wood, on the estate of the Earl of Eldon, in the county of Gloucester. Proceedings of the Society of Antiquaries of Scotland 6 (1864–6): 278–83.
