An informal gathering of all members of the University who stay in Cambridge tomorrow night will be held in the Parlor of Phillips Brooks House tomorrow evening from 6 to 10 o'clock. The affair is to be very informal this year and any one is at liberty to drop in or leave when he likes. A tentative program has been arranged of music and several readings by Professor F. W. C. Hersey '99, of the English Department. J. N. Ladersack '19 will give an exhibition of various sleight of hand tricks.