I am fully aware that this will not be nearly so satisfactory to you as unconditional permission on my part; and I must beg you to believe that it is in many respects far from being so satisfactory to my own feelings in the matter. If I were a thoroughly independent man I can assure you that I should not be deterred from doing what I thought right in this question by any fear of the consequences. As things really stand, however, I do not feel justified in running the risk of losing my ordinary class in whole or in part, as I am assured I should do if I were to attempt to introduce this innovation wholly without warning. If I _knew_ my class, if I had the opportunity of even two or three days’ acquaintance with them, I think I should have little to apprehend as to their behaviour on any such question as this. You will remember, however, that I am dealing with an unknown quantity in making up my mind as to the course I shall adopt; and that I am wholly without adequate data to guide me in my determination.... My present opinion is that whilst I have every wish to admit you to my general class, it will be safest for me to submit the question to my class and to abide by a decision of the majority.” Apparently S. J.-B. obtained a verbal, but satisfactory, modification of this programme by suggesting that the class should be asked “to unite with the lecturer in inviting” the women to join them, but that was a mere matter of detail. Everything depended on the way in which Dr. Nicholson stated the case, and one is not surprised to hear that the favourable reply came not from a majority, but from the entire class. “So,” says S. J.-B., “the first ‘mixed-class’ was inaugurated and continued throughout the summer without the slightest inconvenience.” “The course of lectures on Zoology which I am now delivering to a mixed class,” wrote Dr. Nicholson later in answer to a mistaken statement in a medical paper, “is identically the same as the course which I delivered last winter to my ordinary class of male students. I have not hitherto emasculated my lectures in any way whatever, nor have I the smallest intention of so doing. In so acting, I am guided by the firm conviction that little stress is to be laid on the purity and modesty of those who find themselves able to extract food for improper feelings from such a purely scientific subject as Zoology, however freely handled.”