X. THERMOELECTRIC PROCESSES AND MATERIALS The work reported for the last two years under this heading will, for the coming year, be presented in the new joint reports of the Laboratories for Molecular Science and Molecular Engineering. These reports are intended to present in one place the major part of the work on solid-state materials and devices that is being carried out in the Department of Electrical Engineering, M. I. T. ; they will be published semiannually. Specifically, because of the continuation of the present contract and the new reporting procedure, the progress reports that would have appeared here in Quarterly Progress Reports Nos. 59-63 will be submitted as described above in semiannual reports dated January 1, 1961, July 1, 1961, and January 1, 1962. R. B. Adler This work was supported in part by the U. S. Navy (Office of Naval Research) under Contract Nonr-1841(51). Reproduction in whole or in part is permitted for any purpose of the United States Government. 109