University authorities may move Arnold Toynbee's Friday night lecture from New Lecture Hall to Sanders Theatre in order to hold the large crowd expected.

"We certainly want to provide as much room as we can, but it's hard to predict the number of people who want to attend," William L. Langer '15,. Coolidge Professor of History, said last night. "Since it is the night before the Princeton game, we felt there wouldn't be enough undergraduates at the lecture to warrant the use of larger Sanders Theater," he added.

He said he would not make any final decision as to what auditorium to use until he consulted Dean Watson today. "We don't want to bring Toynbee to Harvard to address a half-empty Sanders Theater, and Sanders is hard enough to speak in even when it is full," he said.

The subject of Toynbee's talk is. "The United States and Russia: Co-existence in a Shrinking World." The historian arrives in New York tomorrow and will stay in America for three weeks. He will then return to England to resume his duties as Director of the Royal Institute of International Affairs.

The main purpose of Toynbee's trip is to arrange for the publication of the last volumes of his "Study of History."