Senega, a gum obtained from the Mimosa nilotica, L. and. which greatly resembles that of arabic;-possesses similar properties, while-it is much cheaper ; and is imported from Senegal, and the coast of Guinea, in loose or single drops, generally of the size. of an egg : their surface wrinkled, and ht than the inner substance, It is destitute of smell, and has little or no taste.

Large quantities of Gum Senega are annually consumed by dyers and artificers ; but this drug is now seldom used as a medicine. - In Africa, it constitutes a principal ingredient in native dishes, being previously dissolved in milk; though the solution, taken alone, is likewise a favourite repast of the negroes. - On importation, it is subject to a duty of 6 3/4d. per cwt.