The sense of smell is one of the most important of the varders on the walls of health's citadel. When alert it is infailing and reliable in its warnings, but it may be drugged ir stupefied by the insidious foe if too often allowed to liold i parley. To drop metaphor, the sense of smell ffe as useful is a guardian of health as it is as a contributor to pleasure. Is a rule, any atmosphere that is offensive to the olfactory lcrve is detrimental to health. The effluvia from decaying mimal or vegetable substances is instinctively shunned by; he human race, unless the demands of business or duty have Droved strong enough to silence the monitor. There are ,hose, however, who seem but little affected by villainous smells, and some who by accustoming themselves to such of-"ences come to disregard them; yet it would be difficult to ind one possessing the sense of smell in any degree who; ould stand unmoved the assaults of sulphurated hydrogen. Others there are who are injuriously affected by scents which (field a positive pleasure to most. Some sicken at the smell f musk; some faint at the aroma of cheese; others turn with disgust from the pungent onion, the succulent cabbage, 3r the fragrant lemon. To these, where the instinct is natural and not an affectation, there can be no doubt that these scents are really harmful. The bodies of all animals have a scent peculiar to their bind. The healthful scent of the cow is associated in the mind of many a country-bred resident of the city with the labors and pleasures of the farm. The scent of the horse is not unpleasant, the cat and the dog have each their own peculiar; aroma. To go further, it is more than conjecture that each individual of the human race gives out his own atmosphere else how can the dog, the horse, the cat distinguish, by smel I alone, the person of his master or mistress ? TIio dog will track his master through traveled roads by the sense of smell. [n some individuals this personal atmosphere, more pungent than pleasant, surrounds them with an acrid flavor, despite frequent bathings and great care in cleanliness. This misfortune is more general than may be supposed, and after cleanliness there is no remedy but a neutralizing agent in the form of an odor, pungent and powerful, or soft and suggestive as the case may demand. And here we may say that strong' odors of any one element, or any one kind rather, are to be shunned as possibly being more offensive to those with whom we come in contact than the annoyance they are designed to remedy. A judicious mingling of differing odors blending into one perfume is the most agreeable boquet for the handker chief, gloves, or hair. The utility of scents is, however, noted more strongly in the sick room. Here perfumes that would be most agreeable and refreshing in health are positively unpleasant and injurious in sickness. He who is ill cares little for the scent of musk, cologne, or even of flowers. These are for the conva lescent. What he desires is pure air; the life-giving oxygen. But at times it is impossible to purify the sick room of its offensive and unhealthy odors by the comparatively slow process of ventilation, without danger to the invalid. Then resort must be had to some powerful deodorizer that will act at once. Latterly, carbolic acid has been strongly recommended for " killing" the offense of human excreta; and the other offenses of the sick room; but to many persons the odor of this acid is very unpleasant. It gives an idea of cleanliness, to be sure, an idea born of our consciousness of the fact; but the sense of smell instinctively revolts at it. Burning sugar is objectionable for the same reason, and it loads the atmosphere of the the room with a bitter, acrid property, trying to weak lungs and the throat. On the contrary, the scent of boiling sirup, as in " sugaring off" in the manufacture, and the sweetness in the shop of the candy maker are pleasant and healthy. Probably no means of deodorizing, quickly, and not offensively, the atmosphere of a sick room equals that of roasting coffee. The agreeable aroma thus thrown off is due, undoubtedly, to the essential oil in the berry and not to the element known as caffein. The best method of using it is to pound up or grind the unroasted berry and sprinkle a few grains on a hot shovel or pan. If the raw material is not obtainable, the roasted material will do, treated in the same manner. But, after all, ventilation is the proper means of affording-the invalid and his attendants the comfort of pure air; but where these scenting and deodorizing agents must be employed, no opportunity to change the loaded and vitiated atmosphere of the room for God's life-bearing and health-giving air should be neglected.