| Red. | |
|---|---|
| parts. | |
| Chlorate of potash, | 61 |
| Sulphur, | 16 |
| Carbonate of strontia, | 23 |
| Purple Red. | |
| parts. | |
| Chlorate of potash, | 61 |
| Sulphur, | 16 |
| Chalk, | 23 |
| Rose Red. | |
| parts. | |
| Chlorate of potash, | 61 |
| Sulphur, | 16 |
| Chloride of calcium, | 23 |
| Orange Red. | |
| parts. | |
| Chlorate of potash, | 52 |
| Sulphur, | 14 |
| Chalk, | 34 |
| Yellow, No. 1. | |
| parts. | |
| Chlorate of potash, | 61 |
| Sulphur, | 16 |
| Dried soda, | 23 |
| Yellow, No. 2. | |
| parts. | |
| Saltpetre, | 50 |
| Sulphur, | 16 |
| Dried soda, | 20 |
| Gunpowder, | 14 |
| Yellow, No. 3. | |
| parts. | |
| Saltpetre, | 61 |
| Sulphur, | 171⁄2 |
| Dried soda, | 20 |
| Charcoal, | 11⁄2 |
| Light Blue. | |
| parts. | |
| Chlorate of potash, | 61 |
| Sulphur, | 16 |
| Burnt alum, | 23 |
| Dark Blue. | |
| parts. | |
| Chlorate of potash, | 60 |
| Sulphur, | 16 |
| Carbonate of copper, | 12 |
| Burnt alum, | 12 |
Sulphate of potash and ammonio- | |
| Dark Violet. | |
| parts. | |
| Chlorate of potash, | 60 |
| Sulphur, | 16 |
| Carbonate of potash, | 12 |
| Burnt alum, | 12 |
| Light Violet. | |
| parts. | |
| Chlorate of potash, | 54 |
| Sulphur, | 14 |
| Carbonate of potash, | 16 |
| Burnt alum, | 16 |
| Green. | |
| parts. | |
| Chlorate of potash, | 73 |
| Sulphur, | 17 |
| Boracic acid, | 19 |
| Light Green. | |
| parts. | |
| Chlorate of potash, | 60 |
| Sulphur, | 16 |
| Carbonate of barytes, | 24 |
| For Theatrical Purposes. | |
| White, No. 1. | |
| parts. | |
| Saltpetre, | 64 |
| Sulphur, | 21 |
| Gunpowder, | 15 |
| White, No. 2. | |
| parts. | |
| Saltpetre, | 64 |
| Sulphur, | 22 |
| Charcoal, | 2 |
| Red. | |
| parts. | |
| Nitrate of strontia, | 56 |
| Sulphur, | 24 |
| Chlorate of potash, | 20 |
| Green. | |
| parts. | |
| Nitrate of barytes, | 60 |
| Sulphur, | 22 |
| Chlorate of potash, | 18 |
| Rose. | |
| parts. | |
| Sulphur, | 20 |
| Saltpetre, | 32 |
| Chlorate of potash, | 27 |
| Chalk, | 20 |
| Charcoal, | 1 |
| Blue. | |
| parts. | |
| Saltpetre, | 27 |
| Chlorate of potash, | 28 |
| Sulphur, | 15 |
| Sulphate of potash, | 15 |
| Ammonio-sulphate of copper, | 15 |
EXTRACTUM LOBELIÆ FLUIDUM. BY WILLIAM PROCTER, JR.
Having had occasion to prepare a fluid extract of lobelia at the solicitation of a druggist, the following process was employed, which is based on the fact, that in the presence of an excess of acid, the lobelina of the natural salt which gives activity to the drug, is not decomposed and destroyed by the heat used, as explained on a former occasion, (vol. xix. page 108 of this Journal.)
Take of Lobelia (the plant,) finely bruised, eight ounces, (troy)
| Acetic acid | one fluid ounce. |
| Diluted Alcohol | three pints. |
| Alcohol | six fluid ounces. |
{250}
Macerate the lobelia in a pint and a half of the diluted alcohol, previously mixed with the acetic acid, for twenty-four hours; introduce the mixture into an earthen displacer, pour on slowly the remainder of the diluted alcohol, and afterwards water until three pints of tincture are obtained; evaporate this in a water bath to ten fluid ounces, strain, add the alcohol and, when mixed, filter through paper.
Each teaspoonful of this preparation is equal to half a fluid ounce of the tincture. It may be employed advantageously to make a syrup of lobelia, by adding two fluid ounces of the fluid extract, to ten fluid ounces of simple syrup, and mixing. Syrup of lobelia is an eligible preparation for prescription use, in cases where lobelia is indicated as an expectorant.—American Journal of Pharmacy.