The recent annual report of the secretary of the Harvard "Annex" brings up some interesting considerations upon the future of the movement represented by that institution towards the introduction of co-education at Harvard. The annex, we are told, looks forward with hope and confidence to the time when, backed by a rich endowment and a powerful clientage, it may knock at the doors of this ancient university and demand admission as a constituent part of its organization. The prospects of any such an event of course are so far removed into the future as to prevent any apprehension whether pleasant or otherwise of its realization. Indeed the majority, we believe, very fairly are inclined to regard such a vision as entirely chimerical. The prospects of the endowment and actual establishment of a great university for women in Cambridge do not seem promising. The arguments advanced on behalf of women for their admission to the privileges of this university of course have considerable force. Nevertheless, it may be doubted whether they overthrow the many objections to the advisability of co-education as a system. If, indeed, it should actually occur that in some future year the annex, then become a great and flourishing women's college, should make application for admission under the general government of the university, then it might be advisable to allow its petition. Not, it is to be hoped, should co-education ever be admitted at Harvard to the extent that it holds at Cornell or at Ann Arbor, but perhaps under some modification of the system prevalent at Oxford and Cambridge in Girton and Newnham colleges. On the grounds of economy, if on no other, such a result might be desired.