Further investigations of the magnetic properties of non-homogeneous systems

The use of cylindrical pole surfaces shaped in accordance with recent theoretical work has made it possible to measure the magnetic susceptibility of a non-homogeneous specimen without reference to its distribution in the specimen carrier. The new method will be particularly useful in the examination of weakly magnetic crystals. So far, it has been used to investigate dilute amalgams of some pure metals with mercury. The results of these and other measurements are discussed; it is interesting that all metals so far investigated exhibit paramagnetism when in dilute solution in mercury to an extent which is usually compatible with an increase in the number of free electrons in the amalgam.