Front Cover; Popularization and People (1911-1962); Copyright Page; Contents; Foreword; The volumes of the Niels Bohr Collected Works; Abbreviated titles of periodicals; Other abbreviations; Acknowledgements; PART I: OVERVIEW AND POPULARIZATION; Introduction; 1 Electron theory and superconductivity; 2 Encyclopedia contributions; 3 Speaking to gymnasium students; 4 Forewords to books; 1. Electron theory and superconductivity; Chapter I. Modern Electrical Theory [book review], Nature 95 (1915) 420-421; Chapter II. On the Question of Superconductivity; Zur Frage der Supraleitung, Proofs, 1932

TranslationChapter III. On superconductivity; Om supraledningsevnen, Manuscript, 1933; Translation; Chapter IV. [Discussion Contribution on Superconductivity], "Proceedings of the Lorentz Kamerlingh Onnes Memorial Conference, Leiden University 22-26 June 1953", Stichting Physica, Amsterdam 1953, pp. 761-762; 2. Encyclopedia contributions; Chapter V. Atom, Encyclopædia Britannica, 14th edition, Vol. 2, London and New York 1929, pp. 642-648; Chapter VI. Matter, Structure of , Encyclopædia Britannica Book of the Year 1938, pp. 403-404

Chapter VII. Matter, Structure of , Encyclopædia Britannica Book of the Year 1939, pp. 409-4103. Speaking to gymnasium students; Chapter VIII. Atoms and Human Knowledge; Atomerne og vor erkendelse, Berlingske Tidende, 2 April 1949; Translation; 4. Forewords to books; Chapter IX. Foreword, C. Møller and E. Rasmussen, "The World and the Atom", Allen & Unwin, London 1940, p. 9; Chapter X. Foreword; Forord, G. Gamow, "Mr. Tompkins i Drømmeland", Gyldendal, Copenhagen 1942, pp. 7-8; Translation

Chapter XI. [For the tenth anniversary of the journal "Nucleonics"], Nucleonics 15 (September 1957) 89Chapter XII. Foreword; Forord, J.R. Oppenheimer, "Naturvidenskab og Livsforståelse", Gyldendal, Copenhagen 1960, pp. i-ii; Translation; Chapter XIII. Preface to the 1961 reissue, "Atomic Theory and the Description of Nature", Cambridge University Press, Cambridge 1961, p. vi; Chapter XIV. Foreword by the Danish editorial committee; Den danske redaktionskomités forord, I.B. Cohen, "Fysikkens Gennembrud", Gyldendals Kvantebsger, Copenhagen 1962, pp. 5-6; Translation; PART II: PEOPLE

Introduction1 Autobiographical; 2 Celebration of earlier scientists; 3 Physics teachers and colleagues; 4 Family and the broader Danish milieu; 1. Autobiographical; Chapter I. [Autobiography], "Festskrift udgivet af Kjøbenhavns Universitet i Anledning af Universitetets Aarsfest, November 1911", Schultz, Copenhagen 1911, pp. 76-77; Translation; Chapter II. [Autobiography for the Danish College of Arms], 23 November 1920; Translation; Chapter III. Niels Bohr, "Les Prix Nobel en 1921-1922", P.A. Norstedt, Stockholm 1923, pp. 126-127