Tupper describes a curious case of a woman of sixty-nine who complained of a severe, stinging pain that completely overcame her after micturition.

An ulceration of the neck of the bladder was suspected, and the usual remedies were applied, but without effect.

An examination of the urine was negative.

On recommendation of her friends the patient, before going to bed, steeped and drank a decoction of knot-grass.

During the night she urinated freely, and claimed that she had passed a worm about ten inches long and of the size of a knitting-needle.