EXPERIMENT XXXV._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.

A paper besmeared with this syrup, was placed over a vessel which

contained an effervescing mixture of chalk and oil of vitriol. No

change of colour took place except in one small point[aa], which had

probably been accidentally touched by the vitriolic acid.

[aa] In making this experiment, if the vegetable juice be placed too

near to the effervescing mixture, some particles of the acid will be

forced up to it, together with the air, and may occasion an erroneous

conclusion to be drawn from it.

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 87 / 93 题