San Francisco, Aug. 30. - The Examiner says: Four heirs of the Adolph Sutro estáte have begun a contest PÍ the will on the ground thaf the exmayor was mentally incompetent to e%ecute a valid instrument at the date mentioned in the document. Those who challenge the probate of their fa-ther's j will are Mrs. R. V. Morbio, JJrs. K. Neusbaum, Edgar Sutro a-nd Miss .CJara Sutro. Their attorney will attick the ' will on all the legal igrounds allow.ed jby the statutes of (ïaljfpmia. Two of Jhe ' heirs, Mrs. Of. Smma Merritt aijd ! Charlee Butrp liaye not joined in ttje contest. The matter will come up fore Judge. Coffey.