Paul Birdsall '21, of Cambridge, has been elected marshal of those receiving the degree of Ph. D. at commencement time this year, and Allen Bliss of West Brattleboro, Vermont, has been chosen as marshal for those receiving A. M. degrees, it was announced in the office of the dean of the Graduate School of Arts and Sciences yesterday.

On the day of Commencement, June 21, Birdsall and Bliss will lead the processions of those receiving A. M.s and Ph. D.'s from in front of Stoughton Hall, where the exercises are to be held.

Birdsall received his Bachelor of Arts degree from Harvard in 1921, his A. M. in 1925, and was an assistant dean in charge of the Freshman class last year. Between 1921 and 1924 he was an instructor in History at St. Paul's and this year he is the holder of the Edwin Austin fellowship. Bliss graduated from Middlebury College in 1923, and has been a student in the Graduate School at Harvard for two years, specializing in Chemistry.

About 68 graduate students will receive the degree of Doctor of Philosophy this spring, it was announced at the same time at University Hall. This number shows an increase of ten over the same figure of last year. The 250 men who are due to receive A. M.'s at commencement, compare with the 156 who attained the distinction a year ago. These figures cannot be taken as final, however, for a considerable number v. aspire to the degrees fail to attain them due to the final examination barrier.