1. W. R. Smythe,Static and Dynamic Electricity(McGraw-Hill Book Company, Inc., New York, 1950), 2nd ed., p. 322.
2. A good table, including values reported through 1956, isConstantes Sélectionées Diamagnétisme et Paramagnétisme, edited by G. Foex (Masson et Cie., Paris, 1957).
3. See Appendix II for a proof.