arness and sleigh bells are sometimes made as others, with a suspended clapper in the usual bell-shaped article, but are generally hollow spheres with perforations, and contain globes of iron which have free play and give a sharp jingle rather than a sonorous and prolonged note.
Call bells are used for the table or desk to summon a servant or messenger in the vicinity.
Chimes, or peals of bells, are of very ancient date, the first chime introduced into England having been put up at Croyland Abbey, A. D. 960, and to this day that country is noted for the number and variety of its peals of bells, which are an institution of almost every village church.
The making and arrangement of a suit of bells to constitute a perfect chime is a matter of considerable difficulty.
The tone of a bell depends conjointly on its diameter and thickness, a small or thick bell yielding relatively a more acute sound than one which is larger or thinner, owing to the greater rapidity of the vibrations