Miss Mary B. Lothrop of Boston will succeed Miss Mary C. Small next year as Associate Director of Admissions at Radcliffe, President W. K. Jordan announced yesterday.

A Radcliffe 1946 graduate, Miss Lothrop received the Jonathan Fay prize, the highest award given each year to a member of the graduating class. Before her appointment she taught French at the Brearley School in New York.

Other administrative appointments for next year have also been announced. Mrs. Margaret Sangree, a Bryn Mawr graduate now at the Mary C. Wheeler School in Providence, will assume the head-resident's post at Bertram Hall, and Miss Marjorie Krummel will take takeover head-resident's duties at Gilman House. Miss Krummel graduated from Duke University and is now studying for her A.M. degree at the Radcliffe Graduate School.

Two new posts have been added to the administrative staff: Director of Housekeeping will be Mrs. Janet K. Hang and Assistant Dietitian will be Miss Glenico French.

Mrs. Eleanor G. Smith was named assistant director of the appointment bureau and Miss Doris L. Playze will be assistant nurse and laboratory technician.