Henry Todd Costello, A.M. '10, Ph. D. '11, now Professor of Philosophy at Trinity College, Hartford, has been appointed Lecturer on Philosophy for the second half of the present academic year, it has been announced by University Hall. George Babcock Cressey, Ph. D. in Geology at the University of Chicago in 1923 and since then Professor of Geology at Shanghai College, Shanghai, China, is spending his sabbatical year at Harvard, and working as Research Fellow in Geology.

Henry Maurice Sheffer '05, Ph. D. '08, Lecturer in Philosophy from 1916 to 1927, and assistant professor since that time, has been elected Associate Professor of Philosophy.

Three Voted Leaves of Absence

Three Harvard professors have been voted leaves of absence. Dean Hector J. Hughes '94, of the Harvard Engineering School will be on sabbatical leave during the second half of 1929-30. Professor H. E. Clifford '89, has been named as Acting Dean of the School of Engineering during Dean Hughes' absence. Byron Satterlee Hurlbut '87, professor of English, will be absent during the second half of 1929-30, on sabbatical leave. Professor Richmond Laurin Hawkins '03, of the Department of French, was granted leave of absence during the academic year 1930-31.