Abstract
The contribution of Erich von Tschermak-Seysenegg (1871–1962) to the beginning of classical genetics is a matter of dispute. The aim of this study is to analyse, based on newly accessible archive materials, the relevance of his positions and theoretical views in a debate between advocates of early Mendelian explanation of heredity and proponents of biometry, which took place in England around 1901–1906. We challenge not only his role of an ‘external consultant’, which at the time de facto confirmed his status of ‘rediscoverer’ of Mendel’s work but also analyse his ambivalent positions which are to be seen as a part of ‘further development’ (Weiterführung), a development of Mendel’s legacy as he understood it. Second, there is an interesting aspect of establishing connections within an ‘experimental culture’ along the Mendel’s lines of thought that was parallel to the first step of institutionalizing the new discipline of Genetics after 1905/06. Part of the study is also the analysis of contribution of his older brother Armin von Tschermak-Seysenegg (1870–1952) who—much like in the case of ‘rediscovery’ of 1900–1901—was for his younger brother an important source of theoretical knowledge. In this particular case, it regarded Bateson’s ‘Defence’ of Mendel from 1902.
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Notes
Unfortunately, the inventory of H. de Vries’ correspondence does not include the letters of W. Bateson, or/and W.F.R. Weldon and K. Pearson (Zevenhuizen (1996), pp. 88–96).
Armin (Eduard Gustav) von Tschermak-Seysenegg (September 21, 1870 in Vienna, Austria to October 9, 1952 in Bad Wiessee, Germany) studied medicine at the Universities of Vienna, Austria, and Heidelberg, Germany. After completing his studies in Vienna in 1895, he moved to Leipzig. From 1899 until 1906, he worked at the University of Halle, where he was appointed adjunct professor in 1902. He counted himself to the school of E. Hering. After 1906, he returned to Vienna where he temporarily received full professorship in physiology and medical physics at the Veterinary College (Hochschule für Tiermedizin), a school he helped to establish. In 1909–1911, he served as its Rector. In 1913, he came to Prague, Bohemia, to fill a vacancy at the Institute of Physiology, a venerable institution founded in the nineteenth century by J. E. Purkinje. After receiving full professorship, he was appointed director of this Institute. He continued to lecture in Prague at the German (Charles) University until the end of WWII in 1945. His research focused mainly at general and special physiology (physiology of sight), anatomy, and neurology. He co-edited the Zeitschrift für Physiologie, the Zeitschrift für Sinnesphysiologie, and the Archiv für Augenheilkunde. He was a member of several scientific societies and academies across Europe. In 1936, together with Th. H. Morgan he became member of the Academy of Sciences of the Holy See (Pontificia Academia Scientiarum) in the Vatican. He died on October 9, 1952 in Bad Wiessee in Bavaria.
There is a problem with the English translation of ‘Werthigkeit’ dating back to 1906 and Bateson’s corrections of Tschermak’s paper on ‘The Importance of Hybridisation in the Study of Descent’, in: Wilks, W. (1907), $$$Report of the third international conference 1906 on genetics, London: Royal Horticultural Society, p. 279. We assume that more accurate is the ‘valuation’ since the German expression for ‘valency’ is ‘Valenz’, and Tschermak used it some of his German-published papers in different context (Olby 1985, pp. 121, 129). For understanding as ‘capacity to prevail, or its ability to breed in subsequent generations’ see Harwood 2000, p. 1064.
Immediately in 1900 and 1901, E.T.S. corresponded with F. Schindler (May 22, 1900, May 14, 1901, January 11, 1901, and November 14, 1901), E. von Proskowetz (June 4, 1900), C. Fruwirth (May 23, 1901), C. Fruwirth (May 23, 1901), and J. v. Wiesner (October 27, 1901).
Weldon to E.T.S., October 26, 1901, Archiv der Österreichischen Akademie der Wissenschaften (hereinafter A ÖAW) Wien, C1, 1–27.
Ibid.
Ibid. This articulated aim is important in connection with Bateson’s statement from 1902 that “Professors Weldon refers to no experiments of his own and presumably has made none“, see Bateson 1902, p. 129.
Weldon to E.T.S., November 21, 1901, AÖAW Wien, C1, 1–27.
Ibid.
Weldon to E.T.S., February 18, 1902, AÖAW Wien, C1, 1–27.
Pearson to E.T.S., June 23, 1902, Wien, AÖAW Wien, C1, 1–27.
Pearson to E.T.S., July 11, 1902, AÖAW Wien, C1, 3–66.
E.T.S. to Weldon, September 1, 1902, University College (hereinafter UC) London, Pearson Papers, Nr. 804/7. Unfortunately the addressee is not clearly stated.
E.T.S. to Pearson, s.d., UC London, Pearson Papers, Nr. 804/7. In the original: “… das Manuscript meiner Besprechung der beiden Publicationen von Bateson für Ihre geschätzte Zeitschrift Biometrika”.
E.T.S. to Pearson, s.d., UC London, Pearson Papers, Nr. 804/7.
E.T.S. to Weldon, March 9, 1904, UC London, Pearson Karl, Nr. 874/7 (see Pearson 1904).
Bateson to E.T.S., September 2, 1902, AÖAdW Wien, C1, 1–27.
The reason is that Tschermak’s first article was delivered to the editors on June 2, 1900. Moreover, Bateson himself mentions on p. 61 de Vries’s letter of October 31, 1900.
Bateson to E.T.S., January 1, 1903, AÖAW Wien, C1, 1–27.
Bateson to E.T.S., December 19, 1903, AÖAW Wien, C1, 1–27.
Bateson to E.T.S., February 15, 1905, AÖAW Wien, C1, 1–27.
Bateson to E.T.S., February 4, 1904, AÖAW Wien, C1, 1–27.
Beteson to E.T.S., October 11 and October 30, 1906, AÖAW Wien, C1, 1–27. Tschermark’s contribution was parallely in German and English. It, first, occured in German (von Tschermak-Seysenegg 1906), and secondly in English in 1907.
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This paper originated as part of a research project DFG HO–2143/8–1.
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Simunek, M., Hoßfeld, U. & Breidbach, O. ‘Further Development’ of Mendel’s legacy? Erich von Tschermak-Seysenegg in the context of Mendelian–biometry controversy, 1901–1906. Theory Biosci. 131, 243–252 (2012). https://doi.org/10.1007/s12064-012-0158-z
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DOI: https://doi.org/10.1007/s12064-012-0158-z