The Ephemerides contains an account of a case in which cystotomy was repeated four times, and there is another record of this operation having been done five times on a man.

Instances of repeated Cesarean section are mentioned on page 130.
Before leaving this subject, we mention a marvelous operation performed by Billroth on a married woman of twenty-nine, after her sixth pregnancy.

This noted operator performed, synchronously, double ovariotomy and resections of portions of the bladder and ileum, for a large medullary carcinomatous growth of the ovary, with surrounding involvement.

Menstruation returned three months after the operation, and in fifteen months the patient was in good health in every way, with no apparent danger of recurrence of the disease.
Self-performed Surgical Operations .-- There have been instances in which surgeons and even laymen have performed considerable operations upon themselves.

On the battlefield men have amputated one of their own limbs that had been shattered.