Louis Hartz '40 will return from his sabbatical in February as an associate professor, the University announced last night.

Hartz rose fast from a teaching fellow in 1942 to instructor in 1945, to assistant professor in 1947. His courses have included a General Education class in Democratic Theory and its Crities.

Other new appointments include:

Gordon r. Willey of the Smithsonian Institution as Bowditch Professor of American and Mexican Archaeology and Ethnology.

Morton G. White, assistant professor of Philosophy, as associate professor of Philosophy.

Commander Joseph P. Fitz-Patrick as associate professor of Naval Science.

Edward L. Ullman, assistant professor of Regional Planning, has had his appointment renewed.