The cystoscopic examination in this case was negative, and the man's statements were disbelieved, but the operation was performed, and the taper was found curled up and covered by mucus and folds of the bladder.

It is not uncommon for needles, hair-pins, and the like to form nuclei for incrustations.

Gross found three caudal vertebrae of a squirrel in the center of a vesical calculus taken from the bladder of a man of thirty-five.

It was afterward elicited that the patient had practiced urethral masturbation with the tail of this animal.

Morand relates the history of a man of sixty-two who introduced a sprig of wheat into his urethra for a supposed therapeutic purpose.