EXPERIMENT XX.

Peruvian bark, quick-lime, and lime water, in the same proportion as

directed by Dr. Macbride, were rubbed together. The filtered infusion

had little colour, tasted very slightly of the bark, though strongly

of the lime, and on my blowing in a stream of air from my lungs, the

surface of it was immediately covered with a cremor calcis, the liquor

grew turbid, and deposited a copious sediment.

Experiments and Observations on the Following Subjects 1. On the preparation, calcination, and medicinal uses of Magnesia Alba. 2. On the solvent qualities of calcined Magnesia. 3. On the variety in the solvent powers of quick-lime, when used in different quantities. 4. On various absorbents, as promoting or retarding putrefaction. 5. On the comparative antiseptic powers of vegetable infusions prepared with lime, &c. 6. On the sweetening properties of fixed air. · 第 69 / 93 题