File All Summer Addresses -- P.O.

Officials of the Cambridge Post Office Department have issued an impassioned plea to students leaving Cambridge for the summer sabbatical to send a change of address notice to all magazines to which they subscribe.

They explained that every year mailboxes are cluttered up with hundreds of unclaimed periodicals, and a great deal of money is lost because of the neglect of student readers.

Simulataneously, the Information Office yesterday requested all students to file summer addresses with them.