This medicine is a concentrated preparation of Rock Rose and Stillingia, combined with other plants, well-known for their specified action on the blood, which makes a compound medicine, that has never been equalled, and will be hard to surpass in the scientific future. It is impossible to give a full account of its virtues and cleansing capacities on this label, and the Prof. must, therefore, be content with briefly stating that it is an infallible remedy for All Diseases of the Blood, be they Constitutional, Hereditary, or of Recent Contraction. Nearly every ailment known to the medical faculty is in a greater or lessor degree dependent for its appearance and its virulence upon a _Disease of the Blood_. Ulcers, Tumours, Scrofula Bunches, Fistula, Piles, Painful Eruptions, indeed all afflictions manifested upon the outer surface of the body are the consequences of diseased blood. Many terrible maladies, which take the shape of Internal Inflammation, Sores, etc., and appear in the form of Fevers, Aches, Swellings, Glandular Disturbances, Mental Derangement, and General Debility, also proceed from the same cause. It is an admitted fact that, with Pure Blood and Regular Bowels, no individual ever can be permanently, seriously, or dangerously ill, if ill at all. Dose.—For Adults, one tablespoonful three times a day before eating. For Children, the dose must be reduced to a teaspoonful. Analysis showed 100 fluid parts of the liquid to contain 19·7 parts of solids, of which 15·5 parts were sugar (partly inverted); a good deal of mucilage was present, but no alkaloid and no mineral substance except the small quantity of ash always present in vegetable extracts; alcohol was present to the extent of 23 per cent. by volume. Evidence was obtained of the _probable_ presence of a preparation of stillingia, but this drug does not contain any active principle by which it can be certainly identified. Rock rose (_Cistus canadensis_) has been used to some slight extent medicinally, but no particular virtues appear to have been assigned to it; it is, however, described as bitter and astringent. The 3 or 4 per cent. of extractive matter present in the mixture under consideration showed neither bitterness nor astringency, nor any property by which it could be identified, or which would indicate any medicinal properties. HOOD’S COMPOUND EXTRACT OF SARSAPARILLA. This is an American preparation, but the Company which makes it has offices in London. A bottle, costing 1s. 1½d., contains 2¼ fluid ounces. The following paragraph appeared on the covering of the bottle: