The fractured piece of sound, which measured 17 cm.

in length, made its exit from the anus, and the patient recovered.

Wheeler reports the case of a man of twenty-one who passed a button-hook into his anus, from whence it escaped into his bladder.

The hook, which was subsequently spontaneously passed, measured 2 1/2 inches in length and 1/2 inch in diameter.
Among females, whose urethrae are short and dilatable, foreign bodies are often found in the bladder, and it is quite common for smaller articles of the toilet, such as hair-pins, to be introduced into the bladder, and there form calculi.

Whiteside describes a case in which a foreign body introduced into the bladder was mistaken for pregnancy, and giving rise to corresponding symptoms.