It is shown that the susceptibility of copper and silver is structure sensitive. Annealing increases the diamagnetism and drawing decreases it. It is suggested that uncertainty concerning the state of a metal as well as uncertainty concerning its purity may account for the large spread of observed values of the susceptibility. It is shown that the Pauli paramagnetism of the free electrons and the diamagnetism of the ions taken together are not sufficient to explain the susceptibility of the alkali metals. It is suggested that partly bound electrons should be taken into considertion. Several effects are predicted by means of which the total susceptibility can be analyzed and its component parts measured separately.

• Received 7 July 1930

DOI:https://doi.org/10.1103/PhysRev.36.978