AMERSHAM, or AGMONDESHAM, a market town in Buckinghamshire, with a free-school, and four almshouses. It sends two members to parliament, and has a market on Tuesday. It is a rectory rated at 481. 16s. 8d. in the king's books. The market-house is a very handsome structure. Population in 1811, 2259. W. Long. 0. 35. N. Lat. 51. 47.