1. This is only approximately correct, since Minneapolis and St. Louis, homes of Herbert Feigl and Richard Rudner respectively, lie on the west bank of that river. Given the total area of North America, the approximation is, I think, acceptable.
2. Philosophical Review 57 (1948), pp. 330–346.
3. See also Reichenbach’s contribution and Einstein’s response in Paul Arthur Schilpp, ed., Albert Einstein: Philosopher-Scientist.
4. I cite the English edition of this work, rather than the original Wahrscheinlichkeitslehre, because he added new material on this topic in the later edition.
5. Proceedings and Addresses of the American Philosophical Association 51 (1978), pp. 683–705.