Exchange of Professorial Duties

THE proposal of my friend Prof. Anderson Stuart, explained in the subjoined letter, seems to me one which may very probably commend itself to the professors and governing bodies of some of our Universities and University Colleges; and I therefore venture to ask for its publication in NATURE. By correspondence twelve months in advance, such an exchange as is here suggested could be arranged (with the assent of Senate, Council, or other authority), and would undoubtedly, where practicable, be of very great interest and advantage, not only to the teachers concerned, but also, in no less degree, to their classes.