KEYNSHAM, a town of Somersetshire, 116 miles from London. It is a great thoroughfare in the lower road between Bath and Bristol. They call it proverbially smoky Keynsham, and with equal reason they might call it foggy. It has a fine large church, a stone bridge of 13 arches over the Avon to Gloucestershire, and another over the river Chew. Its chief trade is malting. It has a charity school, a weekly market, and three fairs.
KEYSER'S PILLS, a celebrated mercurial medicine, the method of preparing which was purchased by the French
Keyser's French government, and was afterwards published by M. Richard. It is the acetate of mercury. See CHEMISTRY and MATERIA MEDICA Index.