Semiconductors Available to Purchase

A conference on the properties of semiconducting materials will take place at the University of Reading, England, from July 10th to 15th inclusive, 1950. The conference, which is assisted by Unesco, will be under the auspices of the International Union of Physics, in cooperation with the Royal Society, and will be organized by N. F. Mott and R. W. Ditchburn. Leading research workers from Czechoslovakia, France, Netherlands, Sweden, Switzerland, the U.S.A., and Great Britain have accepted invitations to contribute papers. Their subjects include the conductive properties of nonmetallic solids, photoconduction, barrier layer rectifiers, crystal triodes, etc., and the relevant theoretical issues. The proceedings of the conference will be published in book form. A general prospectus can be obtained from the secretary, H. K. Henisch, Department of Physics, The University, Reading, England.