As the ingredients of some of the following compounds are usually sold by druggists, who may be expected to furnish information as to the manner of using them, and as they may all be regarded as auxiliaries to medical treatment, some notice of them here seems desirable, though it must necessarily be brief and incomplete.

Arrow-root. [West Indian arrow-root is the fecula of the tubers of the Maranta arundinacea; East Indian arrowroot is obtained from the Curcuma augustifolia; South Sea or Tahiti arrow-root from the Tacca pinnatifida. They have all the same properties, and are used in the same manner]. Mix a dessert-spoonful of arrowroot with sufficient cold water to form a soft paste; rub it till quite smooth, and add half a pint of boiling water, stirring it briskly. Boil it for a minute or two, and when removed from the fire add a tea spoonful of sherry or other white wine (where wine is admissible), with a little grated nutmeg or lemon-peel, and sugar to the taste. For young children, milk should be used instead of water, and the wine omitted; it is also more nourishing in this form for those invalids with whom milk agrees.

Tors ies MOISThe fecula of a species of Canna.] It is used in the same way as arrow-root; but rather less is required. It forms a more tenacious, but less transparent jelly.

Sago. [The granulated fecula of the pith of one or more species of the Sago Palm.] Wash an ounce of pearl sago in cold water; then boil it very gently in a pint of fresh water, stirring it frequently till dissolved. It may be flavoured with wine, spices, and sugar, as directed for arrow-root. For children, and for consumptive and debilitated patients, it may be made with milk instead of water. The common sago, being in larger grains, requires more time to dissolve; and is usually steeped for some hours before boiling it.

Tapioca. [Obtained from the tuberous roots of the Cassava (Jatropha manihot). It is usually sold in small lumps formed by drying the fecula on hot plates.] It is used in the same way as sago; but requires to be previously steeped for some hours, or to be simmered for a longer time. It forms a clear jelly, which may be flavoured with wine, spices, and sugar, as directed for arrow-root; but is more nourishing when made with milk.

Sago Posset, for invalids. Macerate a tablespoonful of sago in a pint of water for 2 hours on the hob of a stove, then boil for 15 minutes, assiduously stirring. Add sugar with an aromatic, such as ginger or nutmeg, and a table-spoonful or more of white wine. If the wine be not pcr-mitted, flavour with lemon-juice.

Sago Or Tapioca Milk, For Invalids

Take an ounce of either of these feculAe, and soak it in a pint of cold water tor an hour; then pour off this water, and, adding 1 1/2 pints of good milk, boil slowly until well incorporated. - Or. A. T. Thomson.

Tapioca Pudding, For Invalid

Beat up 1/2 ounce of sugar with the yolks of 2 eggs, and stir the mixture into a pint of tapioca milk. - Dr. THOMSON.

Arrow-root milk and pudding may be made like the corresponding preparations of tapioca

Panada, for invalids. Place in a saucepan some very thin slices of bread crumb, and add rather more water than will cover them. Boil now until the bread becomes pulpy, strain off the superfluous water, and beat up the remainder into the consistence of gruel. Sweeten with white sugar, and add, if permitted a little sherry wine. Barley Water. See Decoctum Hordei, and Decoctum