512 APPENDICES
L2. Les Prix Nobel, pp. 101-2. Imprimerie Royale, Stockholm, 1923.
L3. H. A. Lorentz, letter to P. Ehrenfest, September 22, 1919.
Nl. B. Nagel, letter to A. Pais, May 7, 1981; see also B. Nagel in Science, Technology
and Society in the Time of Alfred Nobel, Nobel Symposium, Karlskoga, 1981, to be
published.- W. Ostwald, letter to SAS, October 2, 1909.
- , letter to SAS, December 21, 1911.
- —, letter to SAS, December 30, 1912.
PI. E. Pringsheim, letter to SAS, January 12, 1912.
P2. M. Planck, letter to SAS, January 19, 1919.
Wl. W. Wien, letter to SAS, early January, 1912.
W2. P. Weiss, letter to SAS, January 21, 1917.
W3. L. Witten (Ed.), Gravitation. Wiley, New York, 1962.