Page:Chronicles of pharmacy (Volume 2).djvu/215

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pills. The powder is made by first taking hens' egg-shells, cleaning and drying them, crushing them up in the hands, and putting them into a three-pint crucible, lightly, so that they will fill about three-fourths of its capacity. Cover the crucible with a tile and place it in the midst of a strong, clear fire, above and below. Keep the crucible in the fire until the egg-shells are calcined to a greyish-white, and have acquired an acrid, salt taste. This will need eight hours at least. The calcined shells are to be kept in a dry, clean, open earthenware pan, about three parts filled, in a dry room for two months exactly. They will then have become of a milder taste and the part which is sufficiently calcined will be in a powder of such fineness that it will pass through a hair sieve, which has to be done.

"In like manner take garden snails with their shells, cleaned from dirt, put them in a crucible whole, put the crucible in the fire as before, and keep it there until the snails have done smoaking, which will be about one hour. They are then to be rubbed to a fine powder in a mortar, the two powders are to be mixed, sifted through a cypress sieve, bottled in close-stopped bottles, and kept in a dry place for use."

"I have generally added a small quantity of Swines-Cresses, burnt to a blackness and rubbed fine, but this was only with a view to disguise it," adds the lady, conscientiously.

"The egg-shells may be prepared at any time of the year, but it is best to do them in summer. The snails ought only to be prepared in May, June, July, or August, and I esteem those best which are done in the first of those months."

The decoction was made by beating 4-1/2 oz. of best alicant soap in a mortar with a large spoonful of