1. ^{{cite news | url=http://historynewsnetwork.org/article/156738 | title=A prominent historian of science dies and no one takes notice| year= 2012 | publisher = History News Network| first=Mehler | last=Barry | accessdate =2015-01-03}}
2. ^¹ {{cite news | url=http://www.ferris.edu/isar/Gasman-cv.pdf | title=Curriculum Vitae | year=2013 | first=Daniel | last=Gasman | accessdate=2013-10-17 | deadurl=yes | archiveurl=https://web.archive.org/web/20131014181636/http://www.ferris.edu/isar/Gasman-cv.pdf | archivedate=2013-10-14 | df= }}
3. ^For example, see Simon Conway Morris, Life’’s Solution: Inevitable Humans in a Lonely Universe (Cambridge: CUP, 2003) or GJ Stein, "Biological science and the roots of Nazism," American Scientist, Vol. 76, No. 1 1988.
4. ^Robert Herzstein, [https://www.jstor.org/stable/1877632 The Scientific Origins of National Socialism by Daniel Gasman]", The Journal of Modern History Vol. 45, No. 1 (Mar., 1973), pp. 145-147
5. ^C. A. Culotta, "The Scientific Origins of National Socialism. Social Darwinism in Ernst Haeckel and the German Monist League by Daniel Gasman", Isis, Vol. 63, No. 4 (Dec., 1972), pp. 587-588
6. ^Ralph H. Bowen, "The Scientific Origins of National Socialism: Social Darwinism in Ernst Haeckel and the German Monist League by Daniel Gasman," American Historical Review, Vol. 78, No. 3 (Jun., 1973), pp. 711-712
7. ^Richards, Robert J.; "Ernst Haeckel's Alleged Anti-Semitism and Contributions to Nazi Biology"
8. ^Barry Mehler, "Haeckel's Monism and the Birth of Fascist Ideology by Daniel Gasman," Journal of the History of Biology, Vol. 34, No. 1 (Spring, 2001), pp. 207-209
9. ^Paul Weindling, "Haeckel's Monism and the Birth of Fascist Ideology by Daniel Gasman," The British Journal for the History of Science, Vol. 35, No. 1 (Mar., 2002), pp. 117-118
10. ^Roger Griffin, "Haeckel's Monism and the Birth of Fascist Ideology by Daniel Gasman," The English Historical Review, Vol. 116, No. 467 (Jun., 2001), pp. 683-685
11. ^Alexander De Grand, "Haeckel's Monism and the Birth of Fascist Ideology by Daniel Gasman," American Historical Review, Vol. 105, No. 3 (Jun., 2000), pp. 883-884