[Fr. from L. Tunis.] A building of considerable height used for observations or for architectural effect. Gay-Lussac's and Glover's lowers are used in making sulphuric acid. The Tower of London is famous in history as a State Prison. The Leaning Tower of Pisa, Italy, is 180 feet high, and is 14 feet out of perpendicular. The Eiffel Tower, Paris, is 985 feet high and built in 1889.

THE LEANING TOWER OP PISA.