Myron P. Gilmore, professor of History, will become chairman of the Department of History July 1. He will replace David E. Owen, professor of History.

Gilmore is an expert on the Renaissance and the Reformation, and has published two books, one on political thought in the sixteenth century, and the other on "The World of Humanism." He is also interested in the process of writing history, and the relationship between the historian and his environment.

An Amherst graduate, he came to Harvard in 1933, where he got his M.A. He received his Ph.D. in 1937 and has been at Harvard since then except for three years of military service during the Second World War.

Hatfield, Frondel Appointed

Acting chairmen have also been appointed for the spring term in the department of Germanic Languages and Literatures and the Department of Mineralogy and Petrography.

Henry C. Hatfield, associate professor of Germanic Languages and Literatures, will head his department during the absence of Stuart P. Atkins, associate professor of Germanic Languages and Literatures. Hatfield is an authority on Goe the and the Romantic Movement.

Clifford Frondel, professor of Mineralogy and Petrography, and a crystallography expert, will be chairman of that department in place of Cornelius S. Hurlbut, Jr., professor of Mineralogy and Petrography.