1. Gum ammoniacum 2 to 4 dr. Powdered squill 1 to 2 dr. Castile soap 3 dr. Oil of aniseed 30 drops. Ginger 1 dr. Syrup enough to form a ball. 2. Gum ammoniacum 2 oz. Powdered squills 1 oz. Powdered ipecacuana ½ oz. Powdered opium ½ oz. Powdered ginger 1 oz. Powdered allspice 1 oz. Oil of aniseed ½ oz. Balsam of sulphur 4 oz. Castile soap, softened by being beaten up with a little syrup 2 oz. To be beaten into a mass fit for making balls. The dose from one ounce to one ounce and a half daily, or twice a day. 3. Barbadoes aloes 1 dr. Assafœtida 1 dr. Liquorice powder and syrup enough to form the ball. One to be given daily until the bowels are a little opened, or the cough is cured. 4. Gum ammoniacum 2 dr. Powdered squills 1 dr. Ipecacuana ½ dr. Castile soap 2 dr. Syrup and liquorice powder enough to form the ball. One to be given daily, or twice a day. Dr. Paris, in his Pharmacologia, remarks, that more is to be gained by the combination of these remedies, than can be obtained by any of them separately. DRENCH. Garlic bruised 4 oz. Boiling vinegar 12 oz. Macerate near the fire three or four hours, then press out the fluid part, and mix with it six ounces of honey. This is sufficient for two doses, and may be given morning and evening. It cannot, perhaps, be too often repeated, that, unless the horse’s diet is carefully attended to, medicine will avail but little, either in chronic cough or imperfect wind.—_White._ EXPLODE, _v._ To drive out with noise and violence. EXPLOSION, _s._ The act of driving out anything with noise and violence. In January, 1809, Mr. Sayers, of Cuckfield, was reloading his fowling-piece; the powder ignited (supposed from a latent spark left by the paper wadding in the barrel), and drove the powder flask, which was copper, to a considerable height in the air, and shattered it to atoms. Mr. Sayers luckily escaped with no injury, except a slight scratch on his fingers. Accidents similar to the above may be effectually prevented by using pieces of pasteboard, felt, or leather, to charge, with instead of soft paper.—_Daniel._ EXTENSOR, _s._ The muscle by which any limb is extended. EXTIRPATION, _s._ The act of rooting out, excision.