It remains for me to say a few words on the economy of our powers or strength, which must be subdivided into physical and moral. Here the idea of law involved in the word economy plays a most important part, for nature has certain laws which, in our employment of our forces, she will not allow to be transgressed with impunity; if we overtax either our bodily or mental strength, we shall find that this disregard of nature's laws will, sooner or later, bring its inevitable punishment. A word of warning against the folly of taking physical exercise in excess will hardly be out of season just now, when bicycling is so very popular, that one unfortunately hears of many men, women and girls who have made themselves ill by riding too fast or too long distances at a stretch, or who, in other words, have not listened to the warning of Nature, which says, "Do enough, but not too much." It is such a pity ever to convert what is intended to be a beneficent pleasure into an evil through our inability to practise a little self-restraint, and this may arise not only from doing too much, but also from doing it in a reckless and senseless manner. I heard it said recently that, according to computations, there had been more deaths from bicycling accidents in the last year in England than there had been English soldiers killed throughout the present Egyptian campaign, from its very beginning to after the Battle of Omdurman; and when one reads the accounts of these accidents, one finds that nearly every one was caused directly by the rider's recklessness and want of prudence. Too much physical exercise also weakens our mental powers, so intimately are mind and body connected, that that is an additional reason for taking bicycling and all other bodily exercises in moderation, lest we should be too tired to fulfil our other duties. The same warning applies to mental overwork. How many a girl while at school, and more especially at College, ruins her eyesight, if not her constitution, by poring over her books at all hours, even when she ought to be taking the much-needed rest of sleep, or of open-air exercise; and they cannot, or will not, believe that time spent on necessary recreation and change of occupation is time saved, not lost, and will enable them to resume their work or exercise with far more vigour. Therefore, dear girls, listen to your common sense, and stop immediately when you feel that, either in work or play, you are getting overtired.