In the largest mass promotion of Faculty members since before the war, the Board of Overseers yesterday raised 23 men to the rank of full professor. Two more received associate professorships with another pair appointed to endowed chairs.

The average age of the appointees is 44 years. Six are under 40 and 12 more between 40 and 45. Youngest of the group is 29-year-old Robert B. Woodward, elevated to the position of associate professor of Chemistry, who gained fame during the war through his discovery, in conjunction with Dr. William V. Doering, of a synthetic process for manufacturing quinine.

List Announced

The complete list of appointments:

Lars V. Ahlfors (Mathematics), Paul D. Bartlett (Chemistry), Marland P. Billings '23 (Geology), Francis Birch '24 (Geology). Garrett Birkhoff '32 (Mathematics), Lemuel R. Cleveland (Biology), Carleton S. Coon '25 (Anthropology), Frederick B. Deknatel (Fine Arts), Rupert Emerson '21 (Government), Merle Fainsod (Government), Edwin Frickey (Economics), Mason Hammond '25 (Greek and Latin, History), Michael Karpovich (History), Donald C. McKay (History), Saunders MacLane (Mathematics), Arthur T. Merritt (Music), Jean-Joseph Seznee (Romance Languages and Literatures), Jabez C. Street (Physics), Kenneth V. Thimann (Biology), Bartlett J. Whiting '25 (English), John D. Wild (Philosophy), Donald C. Williams (Philosophy), and E. Bright Wilson, Jr. (Chemistry).

Lingane Associate Professor

Permanent appointments to the Faculty in the rank of associate professor were given to James J. Lingane (Chemistry) and to Robert B. Woodward (Chemistry).

Two new men were also named to fill the Gordon McKay Professorships of Applied Physics and Mathematics. Leon N. Brillouin is to fill the Mathematics chair beginning next July, While Ronald W. P. King will assume his new Physics post immediately.

The Overseers also named Alfred S. Romer as Alexander Agassiz Professor of Zoology. The Agassiz Professorships were established in 1944 for the support of research in connection with the Museum of Comparative Zoology.