Abstract
Measurements of thermal conductivity at temperatures between 2 and 150°K for several specimens of gold of differing physical and chemical purity are reported. A brief description is given of the cryostat and the experimental technique. Below 35°K the total thermal resistance is given approximately by R = A/T + BT2; apparent small departures from this equation are discussed. The experimental values of B lead to a value of C ≃ 15 in the equation for the ideal resistance Ri = R∞ CN2/3 (T/Θ)2. At temperatures above Θ/2 the conductivity is sensibly constant and no minimum is observed.