A strong infusion of tea is one of those beverages having a tendency to oppose the formation of fat; it is nevertheless nutritious, inasmuch as it prevents the disintegration of tissue. Moreover, its action on the nervous system is exhilarating. On account of these properties it is much used in England by all classes. A weak infusion of tea, with a superabundance of milk and sugar, is, on the other hand, highly conducive to the formation of fat, and therefore should be avoided. The beneficial effects of tea and coffee are due to substances heretofore named "_theine_" and "_caffeine_," according to the source whence they were obtained. These substances are now known to be identical, although derived from plants of entirely different families. An infusion of coffee produces effects similar to those induced by tea. If weak, it is favourable to the development of corpulence; but if strong, it acts as a powerful stimulant upon the nervous system, and assists digestion. A very strong infusion of coffee, more particularly when taken upon an empty stomach, is powerfully anti-obesic in its effects. It has been alleged that coffee must be nutritious, because labourers are enabled to support life upon a small amount of solid food when supplied with an abundance of coffee. Now the fact is, that coffee has all the properties of tea, and, like it, prevents waste of tissue, thereby economizing food to the utmost, and enabling the labourer to do a large amount of bodily work with a comparatively slight expenditure of the organized tissues of the living body. W. C. CHEWETT & CO., PRINTERS, KING STREET EAST, TORONTO.