Abstract
After Bohr had stopped attending H0ffding’s seminars and his participation in the meetings in the home of his childhood had ceased, he and Høffding were still in touch. The Bohr Archive has in its possession a letter from Høffding, dated 14.05.1911, in which he sends his congratulations on the occasion of Bohr’s defending his doctoral dissertation.1 Later, in the same year, which was marked by his father’s death, Niels Bohr went to England. He arrived at Cambridge at the end of September 1911, where he stayed until the beginning of April 1912. He brought along letters of introduction from Høffding to various people at Cambridge.
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Notes
Niels Bohr Archive, BPC.
The letter is mailed from Bohr’s institute at Blegdamsvej, which was built in 1920. Bohr mentions two names in it: Philipsen and Mayor Jensen. The former is probably Gustav Philipsen (1853-1925), who was alderman in the corporation of Copenhagen from 1909 until he died, and the latter must be Jens Jensen (1859-1928), who became one of the mayors in the corporation in 1903, a position he held until November 1924, when he became the Prefect.
F. Brandt et al. (eds.), Correspondance entre Harald Høffding et Emile Meyerson, Copenhagen 1939.
Niels Bohr Archive, BPC.
N. Bohr, “Ved Harald Høffding’s 85-årsdag” (On the Occasion of the 85th Birthday of Harald Høffding), Berlingske Tidende, 10 March 1928. Evening edition of this newspaper.
E. Rubin, Harald Høffding in Memoriam. Fire taler holdt på Københavns Universitet paa Harald Høffdings 89 Aars Dag 11. marts 1932, (Four speeches made at the University of Copenhagen on Harald Høffding’s 89th Birthday 11th March 1932).
N. Bohr, “Mindeord over Harald Høffding”, p. 134.
See, for instance, N. Bohr, “The Quantum of Action and the Description of Nature” (1929), in Atomic Theory and the Description of Nature [abbr. ATDN], University Press, Cambridge 1961, p. 100; and “Biology and Atomic Physics” (1937), in APHK, p. 21-22.
N. Bohr, “Mindeord over Harald Høffding”, p. 134–35.
See H. Høffding, “Bemaerkninger om Erkendelsesteoriens nuvaerende stilling” (Notes on the Present State of the Theory of Knowledge), Det kgl. Danske Vid. Selsk. Filosofiske Meddelelser II, 2, Copenhagen 1930, pp. 9 ff. and p. 17.
Høffding’s manuscripts, drafts and various notebooks are all kept at the Royal Library in Copenhagen and run to many thousands of pages. The missing pages are from Kladdebog XX (Notebook XX), Ny kgl. Sml. 2053 fol., and they seem to have been written in the spring of 1928 just after Høffding had made a draft of his recommendation of Léon Brunschvicg for membership of the Royal Academy. This he must have done in January of 1928 because Brunschvicg was elected as a member on 13th April.
Niels Bohr Archive, BSC: 12.
This must be Bohr’s Como lecture dubbed “The Quantum Postulate and the Recent Development of Atomic Theory” which was presented at Como in October of 1927 and which for the first time introduced Bohr’s ideas of complementarity.
Niels Bohr Archive, BSC: 12.
See Oversigt over Det kgl. Danske Videnskabernes Selskabs Forhandlinger 1927-28, p. 26.
N. Bohr, “The Quantum Postulate and the Recent Development of Atomic Theory”, in Niels Bohr: Collected Works, Vol. 6, p. 158
Niels Bohr Archive, BSC: 9. Published in Collected Works, Vol. 6, pp. 44–46.
Niels Bohr Archive, BSC:14. Published in Collected Works, Vol. 6, pp. 189–91 and pp. 430-32.
J. Kalckar, “General introduction to volume 6 and 7”, in Collected Works, Vol. 6, p. xxvi
W. Heisenberg, “Quantum Theory and Its Interpretation”, p. 107, in S. Rozental, Niels Bohr, 94-108.
Høffding’s Notebooks XX and XXI contain the four drafts of this paper. I had claimed in my paper “The Bohr-Høffding Relationship Reconsidered”, Stud. Hist. Phil. Sci., Vol. 19, no 3, 321-46, note 39, that the various drafts were most likely written during 1929 or, maybe, during the winter 1929-30.1 now think this is incorrect since the first draft is placed in Notebook XX not chronologically so remote from the missing paper, indicating that Høffding probably started on this essay not too long after his discussions with Bohr after the latter had returned from his summer cottage.
Niels Bohr Archive, BSC: 12.
See Oversigt over Det kgl. Danske Videnskabernes Selskabs Forhandlinger 1929-30.
See The minutes of The Society for Philosophy and Psychology 1926-1963, pp. 17–18, The Department of Philosophy, University of Copenhagen.
Published in Collected Works, Vol. 6, pp. 428–30.
Niels Bohr Archive: Bohr’s General Correspondence (BGS).
Niels Bohr Archive: BGC.
H. Fuglsang-Damgaard, “Harald H0ffding 1843-1943”, Dansk Teologisk Tidsskrift, 6, 1943, 225–37, p. 237.
Niels Bohr Archive, MSS: 13. Some obvious misspellings by Bohr have been corrected.
Niels Bohr Archive: BGC.
“Bemærkninger om Erkendelsesteoriens nuvaærende Stilling”, p. 17; parentheses and italics mine.
See Den menneskelige Tanke, p. 260.
See Formel Logik, p. 8 ff.
See H. Høffding, “Relation som Kategori” (Relation as a Category), p. 72, Det kgl. Danske Vid. Selsk. Filosoflske Meddelelser 1,3, Copenhagen 1921.
See Ibid.,p. 72.
See Ibid., p. 75.
“Bemaerkninger om Erkendelsesteoriens nuvaerende Stilling”, pp. 18–19.
Ibid., p. 19.
See Ibid., p. 14ff.
See Ibid., p. 9 ff. and p. 17.
Ibid., p. 28.
Ibid., p. 19.
See Ibid., p. 17.
See note 3.
APHK, pp. 116–17.
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Faye, J. (1991). Chapter III. In: Niels Bohr: His Heritage and Legacy. Science and Philosophy, vol 6. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-3200-8_3
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