perfectly aware that certain spores will sometimes survive the treatment recommended, but the objection is rather academical than real, and so far as I know, in the actual practice of daily life no instance of the conveyance of disease has ever been traced to the use of boiled water, so that I have always been accustomed to recommend the adoption of this plan in preference to all others, in all cases where the water supply is not absolutely above suspicion. One caution, however, is necessary: always personally to see that the water boils; for, apart from absolute deception, servants often really do not know when water has actually reached the boil, as most housewives know from experience of the spoiling of their “dish of tea.” There is no need to stand over the man and watch the process however. A portable stove should be brought into the verandah, and the servant should be instructed to let one know when it is boiling, so that a moment’s inspection suffices to satisfy one of the fact, which, after all, is not a very formidable addition to the day’s work. The water should be covered so as to protect it from dust and insects, and put aside to cool. If a _sorhai_, or porous water bottle, be used for cooling, it should be frequently washed out with strong permanganate solution and occasionally boiled, as it is difficult to keep the interior of these vessels clean, on account of their rough surface, and impossible to see whether they are so or not. It should be remembered, too, that it is as essential to have pure water on the toilet table for cleaning the teeth, as it is for drinking purposes, as the quantity of poison introduced into the system is of comparatively little importance, in the case of the virus of infective diseases, which have the power of multiplying within the system. When travelling, it is a good plan to have an ample supply of tea brought for the early morning meal, usually taken before dressing; and to use what is left for cleansing the mouth instead of water. After standing as it thus has, the tea contains a good deal of tannin, and so forms an excellent mild astringent mouth wash, which makes it in some respects an improvement on plain water.