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References
- ↑ Kwok, Sun (2000). "History and overview". The Origin and Evolution of planetary Nebulae. Cambridge University Press. pp. 1–7. ISBN 0-521-62313-8 . Retrieved 13 January 2012.[ permanent dead link ]
- ↑ Spruce, Richard (1884). "Hepaticae of the Amazon and the Andes of Peru and Ecuador". Transactions and Proceedings of the Botanical Society. 15 (1–2). Edinburgh.
- ↑ Spruce, Richard (1908). Wallace, Alfred Russel (ed.). Notes of a botanist on the Amazon and the Andes... during the years 1849–1864. London: Macmillan.
- ↑ Pearson, Michael (2004). Richard Spruce: naturalist and explorer. Settle, Yorkshire: Hudson History. ISBN 1-903783-28-3.
- ↑ Newlands, John A. R. (1864-08-20). "On Relations Among the Equivalents". Chemical News. 10: 94–95. Archived from the original on 21 July 2011. Retrieved 2011-08-30.
- ↑ "Julius Lothar Meyer and Dmitri Ivanovich Mendeleev". Science History Institute. Archived from the original on 21 March 2018. Retrieved 21 March 2018.
- ↑ Bowden, Mary Ellen (1997). "Julius Lothar Meyer and Dmitri Ivanovich Mendeleev". Chemical achievers : the human face of the chemical sciences . Philadelphia, PA: Chemical Heritage Foundation. pp. 59-63. ISBN 9780941901123.
- ↑ Guldberg, C. M.; Waage, P. (1864). "Studies Concerning Affinity". Forhandlinger i Videnskabs-Selskabet i Christiana: 35.
- ↑ Waage, P. (1864). "Experiments for Determining the Affinity Law". Forhandlinger i Videnskabs-Selskabet i Christiania: 92.
- ↑ Guldberg, C. M. (1864). "Concerning the Laws of Chemical Affinity". Forhandlinger i Videnskabs-Selskabet i Christiania: 111.
- ↑ Schaffer, Jeffrey P. Yosemite National Park (4th ed.). p. 48.
- ↑ Enneper, A. (1864). "Analytisch-geometrische Untersuchungen". Zeitschrift für mathematische Physik. 9: 96–125.
- ↑ Maxwell, J. Clerk (1865). "A dynamical theory of the electromagnetic field" (PDF). Philosophical Transactions of the Royal Society of London. 155: 459–512. doi:10.1098/rstl.1865.0008. Archived (PDF) from the original on 2011-07-28. Retrieved 2011-08-30.
- ↑ Chaffin, Tom (2008). The H. L. Hunley: the Secret Hope of the Confederacy . New York: Hill and Wang. ISBN 978-0-8090-9512-4.
- ↑ Penguin Pocket On This Day. Penguin Reference Library. 2006. ISBN 0-14-102715-0.
- ↑ "History". Oriel Chambers. Archived from the original on 2011-02-08. Retrieved 2009-07-27.
- ↑ "Henry Roscoe (1833-1915): flashlight photography". Museum of Science and Industry (Manchester). 2007. Archived from the original on 2012-03-02. Retrieved 2011-11-17.
- ↑ "Copley Medal | British scientific award". Encyclopedia Britannica. Archived from the original on 24 July 2020. Retrieved 23 July 2020.
- ↑ Brentari, Carlo (2015). Jakob von Uexküll: The Discovery of the Umwelt between Biosemiotics and Theoretical Biology. Springer.