burgh found particular satisfaction in breathing their own atmosphere, which was always impregnated with stercoraceous effluvia: that the learned Dr. B———, in his treatise on the Four Digestions, explains in what manner the volatile effluvia from the intestines stimulate and promote the operations of the animal economy: he affirmed, the last Grand Duke of Tuscany, of the Medicis family, who refined upon sensuality with the spirit of a philosopher, was so delighted with that odour, that he caused the essence of ordure to be extracted, and used it as the most delicious perfume: that he himself (the doctor) when he happened to be low-spirited, or fatigued with business, found immediate relief and uncommon satisfaction from hanging over the stale contents of a close-stool, while his servant stirred it about under his nose; nor was this effect to be wondered at, when we consider that this substance abounds with the self-same volatile salts that are so greedily smelled to by the most delicate invalids, after they have been extracted and sublimed by the chemists.—By this time the company began to hold their noses; but the doctor, without taking the least notice of this sig-nal,
