THRIFT, William Edward, M.A., Fellow (T.C.D.): (M.P. University of Dublin, from 1921); Erasmus Smith Professor of Natural and Experimental Philosophy, University of Dublin; a Commissioner of National Education in Ireland: b. 1870; son of late Henry George Thrift, Inland Revenue: m. 18, a dau. of C. H. Robinson, M.D. Educ.: High School. Dublin. Pubn.: edited 4th ed. Preston's Theory of Light. Res.: 80 Grosvenor Sciuare, Rathmines, Dublin.