Abstract
Measurements of the thermoelectromotive force of superconducting versus normal junctions of the same metal have been made for lead, tin, indium, and thallium. The technique used differed in several respects from that employed by previous workers. Results are discussed in light of existing theory. It is found that the data obtained are in good agreement with a relation derived from Fermi-Dirac statistics and the assumption that the Thomson coefficient of a superconductor is zero.