Put into a sauce-pan two ounces of good cocoa (the chocolate nut before it is ground) and one quart of water. Cover it, and as soon as it has come to a boil, set it on coals by the side of the fire, to simmer for an hour or more. Take it hot with dry toast.
These can be procured at the principal grocers and confectioners, or at a chocolate manufactory. They are the thin shells that envelope the chocolate kernel, and are sold at a low price; a pound contains a very large quantity. Soak them in water for five or six hours or more, (it will be better to soak them all night,) and then boil them in the same water. They should boil two hours. Strain the liquid when done, and let it be taken warm.
Break a fresh egg into a saucer, and mix a little sugar with it; also, if approved, a small quantity of wine. Beat the whole to a strong froth. It is considered a restorative.
To forty grains of carbonate of soda, add thirty grains of tartaric acid in small crystals. Fill a soda bottle with spring water, put in the mixture, and cork it instantly with a well-fitting cork.
Fold in a white paper one drachm of Rochelle salts. In a blue paper a mixture of twenty grains of tartaric acid, and twenty-five grains of carbonate of soda. They should all be pulverized very fine. Put the contents of the white paper into a tumbler not quite half full of cold water, and stir it till dissolved. Then put the mixture from the blue paper into another tumbler with the same quantity of water, and stir that also. When the powders are dissolved in both tumblers, pour the first into the other, and it will effervesce immediately. Drink it quickly while foaming.