LXXX. The electrical resistivity of liquid iron

As a result of some preliminary experiments, which are described, the electrical resistivity of iron just above its melting point has been found to be 139 microhm cm2/cm. The resistivity of solid iron has also been measured and a value of 127·5 microhm cm2/cm is indicated at the melting point. Thus the increase in resistivity on fusion is only 9%, which is much less than would be expected on theoretical grounds and has been obtained for most other metals.