| Arsenious Acid, | 5 to 10 grains (·324 to ·648 grm.) | |||||
| Aniseed, | 1⁄2 oz. | ( | 14 | ·1744 | grms. | ) |
| Opium, | 30 grains | ( | 1 | ·94 | gr„ | ) |
| Treacle, | q. s. | |||||
An arsenical ball, often given by grooms to horses for the purpose of improving their coats, contains in 100 parts:—
| Arsenious Acid, | 2 | ·5 | per cent. |
| Pimento, | 19 | ·2 | „ |
| Extract of Gentian, | 78 | ·3 | „ |
Another ball in use is composed of arsenic and verdigris (acetate of copper), of each 8 grains (·518 grm.); cupric sulphate, 20 grains (1·3 grm.); q. s. of linseed meal and treacle.
(3) Rat and Fly Poisons, &c.—An arsenical paste sold for rats has the following composition:—
| Arsenious Acid, | 5 | ·0 | per cent. |
| Lampblack, | ·6 | „ | |
| Wheat Flour, | 46 | ·3 | „ |
| Suet, | 46 | ·3 | „ |
| Oil of Aniseed, a small quantity. | |||
Another rat poison is composed as follows:—
| White Arsenic, | 46 | ·8 | per cent. |
| Carbonate of Baryta, | 46 | ·8 | „ |
| Rose-pink,[711] | 5 | ·8 | „ |
| Oil of Aniseed, | ·2 | „ | |
| Oil of Rhodium, | ·2 | „ |