Einstein: His Life and Universe

to Georg Meyer, May 23, 1909; Einstein to Georg Meyer, June 7, 1909; Einstein to Erika Schaerer-Meyer, July 27, 1951; Highfield and Carter, 125; Overbye, 164.

42

. Mileva Mari

to Helene Savi

, late 1909, Sept. 3, 1909, in Popovi

, 26–27.

43

. Seelig 1956a, 92; Dukas and Hoffmann, 5–7.

44

. Einstein to Arnold Sommerfeld, Jan. 14, 1908. I am grateful to Douglas Stone of Yale, who helped me with Einstein’s early work on the quanta.

45

. Einstein lecture in Salzburg, “On the Development of Our Views Concerning the Nature and Constitution of Radiation,” Sept. 21, 1909, CPAE 2: 60; Schilpp, 154; Armin Hermann,

The Genesis of the Quantum Theory

(Cam-bridge, Mass.: MIT Press, 1971), 66–69.

46

. Einstein to Arnold Sommerfeld, July 1910. As Einstein’s friend Banesh Hoffmann quipped in

The Strange Story of the Quantum

(New York: Dover, 1959), “They could but make the best of it, and went around with woebegone faces sadly complaining that on Mondays, Wednesdays, and Fridays they must look upon light as a wave; on Tuesdays, Thursdays and Saturdays, as a particle. On Sundays they simply prayed.”

47

. Discussion following Sept. 21, 1909, lecture in Salzburg, CPAE 2: 61.

48

. Einstein to Jakob Laub, Nov. 4 and 11, 1910.

49

. Einstein to Heinrich Zangger, May 20, 1912.

CHAPTER EIGHT: THE WANDERING PROFESSOR

1

. The best and original work about Duhem’s influence on Einstein is by Don Howard. See Howard 1990a, 2004.

2

. Friedrich Adler to Viktor Adler, Oct. 28, 1909, in Folsing, 258.

3

. Seelig 1956a, 97.

4

. Seelig 1956a, 113.

5

. Seelig 1956a, 99–104; Brian 1996, 76.

6

. Seelig 1956a, 102; Einstein to Arnold Sommerfeld, Jan. 19, 1909.

7

. Overbye, 185; Miller 2001, 229–231.

8

. Hans Albert Einstein interview,

Gazette and Daily

(York, Pa.), Sept. 20, 1948; Seelig 1956a, 104; Highfield and Carter, 129.

9