Professor A. B. Hart '80, Eaton Professor of the Science of Government, will be the first Harvard professor to participate in the new exchange with the following four western colleges: Colorado College, Grinnell College, Knox College, Beloit College. Professor Hart will be absent from Cambridge during the second half of the next academic year and will divide his time equally with each of these four colleges. He will give such instruction as the faculties of these institutions may arrange. In return each of the four colleges will be entitled to send to Harvard one of its younger instructors, who will be appointed an assistant in one of the University courses.