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References
- ↑ Heape, Walter (1891). "Preliminary Note on the Transplantation and Growth of Mammalian Ova within a Uterine Foster-Mother". Proceedings of the Royal Society of London. 48: 457–8. JSTOR 115017 – via Biodiversity Heritage Library.
- ↑ Galton, Francis (1891). "The Patterns in Thumb and Finger Marks – On Their Arrangement into Naturally Distinct Classes, the Permanence of the Papillary Ridges that Make Them, and the Resemblance of Their Classes to Ordinary Genera". Philosophical Transactions of the Royal Society B . 182: 1–23. doi: 10.1098/rstb.1891.0001 . JSTOR 91733.
- ↑ Loeb, Jacques (1890). Der Heliotropismus der Thiere und seine Uebereinstimmung mit dem Heliotropismus der Pflanzen. Würzburg: Hertz. doi:10.5962/bhl.title.1663.
- ↑ Menschutkin, N. (1890). "Beiträgen zur Kenntnis der Affinitätskoeffizienten der Alkylhaloide und der organischen Amine". Zeitschrift für Physikalische Chemie . 5: 589.
- ↑ Menschutkin, N. (1890). "Über die Affinitätskoeffizienten der Alkylhaloide und der Amine". Zeitschrift für Physikalische Chemie. 6: 41. doi:10.1515/zpch-1890-0107.
- ↑ Fischer, Emil (1890). "Synthese des Traubenzuckers". Berichte der Deutschen Chemischen Gesellschaft. 23: 799–805. doi:10.1002/cber.189002301126.
- ↑ Muthmann, W. (1890). "Kürzere Originalmittheilungen und Notizen: Messlit, ein neues Mineral". Zeitschrift für Kristallographie, Kristallgeometrie, Kristallphysik, Kristallchemie (in German). 17. Akademische Verlagsgesellschaft.: 93–94.
- 1 2 Crilly, Tony (2007). 50 Mathematical Ideas you really need to know. London: Quercus. ISBN 978-1-84724-008-8.
- ↑ Waldman, Thomas A. (2003). "Immunotherapy: past, present and future" (PDF). Nature Medicine . 9 (3): 269–277. doi:10.1038/nm0303-269. PMID 12612576.
- ↑ "Schimmelbusch Mask". Park Ridge, Illinois: Wood Library-Museum of Anesthesiology. 2011. Retrieved 2013-03-19.
- ↑ British Patent 7146. "The Akroyd Oil Engine". Ray Hooley's – Ruston-Hornsby – Engine Pages. Archived from the original on 24 May 2011. Retrieved 2011-05-31.
- ↑ Crouch, Tom D. "Clément Ader". Encyclopædia Britannica . Retrieved 2011-03-03.
- ↑ Gray, Carroll (1998–2003). "Clement Ader 1841–1925". Flying Machines. Retrieved 2011-03-03.
- ↑ Gibbs-Smith, Charles H. (1959). "Hops and Flights: A Roll Call of Early Powered Take-offs". Flight . 75: 468. Retrieved 2011-03-03.
- ↑ "Copley Medal | British scientific award". Encyclopedia Britannica. Retrieved 23 July 2020.