EXPERIMENT XIX.

Oak bark was used instead of galls, with similar success, except that

the infusion made with lime-water was not so deep in colour as that

with simple rain water, though much deeper than that prepared with

quick-lime.

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 68 / 93 题