Illustration credits

Page 17. Julian Ochorowicz.

Photograph reproduced with the permission of Archiwum Ilustracji Wydawnictwa Naukowego PWN S.A., Warsaw.

Page 25. Christine Ladd-Franklin.

Photograph taken from The Scientific Monthly. (1930, p. 30). Washington, DC: American Association for the Advancement of Science.

Page 26. Jozefa Joteyko.

Photograph reproduced with the permission of Archiwum Ilustracji Wydawnictwa Naukowego PWN S.A., Warsaw.

Page 33. Carl Stumpf.

Photograph taken from C. Murchison (1930). A history of psychology in autobiography, vol. 1. Worcester, MA: Clark University Press.

Page 45. Charles S. Myers.

Photograph taken from C. Murchison (1936). A history of psychology in autobiography, vol. 3. Worcester, MA: Clark University Press.

Page 47. Gerardus Heymans.

Photograph taken from C. Murchison (1932). A history of psychology in autobiography, vol. 2. Worcester, MA: Clark University Press.

Page 48. James McKeen Cattell.

Archives of the History of American Psychology, Photograph File—The University of Akron. Reproduced with permission.

Page 63. James Drever Snr.

Photograph taken from C. Murchison (1932). A history of psychology in autobiography, vol. 2. Worcester, MA: Clark University Press.

Page 65. David Katz.

Photograph taken from Langfeld, H.S., Boring, E.G., Werner, H., & Yerkes, R.M. (1952). A history of psychology in autobiography, vol. 4. Worcester, MA: Clark University Press.

Page 86. Congress participants, Brussels.

Photograph taken from the Proceedings of the 15th International Congress of Psychology, Brussels, Belgium, 28 July–3 August, 1957. Amsterdam: North-Holland Publishing Company, 1959.

Page 102. Congress participants, Washington.

Photograph taken from the Proceedings of the 17th International Congress of Psychology, Washington, DC, USA, August 20–26, 1963. Amsterdam: North-Holland Publishing Company, 1964.

Page 126. Eugene Jacobson.

Photograph reproduced with the permission of Michigan State University, USA.

Page 135. George Drew.

Photograph reproduced with the permission of the British Psychological Society (BPS).