_What Constitutes a Waiver of the Privilege._—The statutory provisions as to what constitutes a waiver have been set forth above.[312] In California it has been held that cross-examination of the physician by the patient, calling for privileged matter, is a waiver of privilege.[313] In Indiana it has been held that consent to disclosure cannot be inferred from the patient’s simply giving the name of his family physician in applying for a policy of insurance on his life, and that a waiver in such an application should be evidenced by a stipulation too plain to be misunderstood.[314] And a physician’s statements of the cause of his patient’s death, furnished to an insurance company, in pursuance of a stipulation of a policy that satisfactory proof of death shall be submitted to the company, are not rendered admissible by that stipulation.[315] It has also been held that consent to the evidence of one physician is no consent that another physician may divulge confidential communications;[316] and that the physician cannot testify that he found no evidence of injury on the examination of his patient, in order to contradict her;[317] the patient had already testified as to her condition and what the physician had done, but not as to anything said to her by her physician; she had expressly declined to testify concerning communications except as to his prescription for her injury, and without asking him to disprove her assertions the trial Court permitted him to say that he had found no evidence of injury; this was held to be error. It has also been held that the taking of a physician’s deposition and filing it, for the purpose of breaking the force of his testimony in a deposition taken by the opposite party, is no consent in itself to the reading of the other party’s deposition.[318] But when, in an action against a physician for malpractice, the patient testifies as to the manner of treatment, the physician is then at liberty to introduce the testimony of himself or another physician as to the facts thus put in issue by the patient.[319] In Iowa it has been held that the testimony of a patient regarding the condition of his health is not a waiver of privilege, so as to allow his opponent to introduce the testimony of his physician to contradict him.[320] In Michigan a physician has been allowed to contradict his patient as to the time when her trouble commenced, but on the ground that it had not been shown that the information was necessary to enable him to prescribe.[321] But it has been held that waiver as to one physician is not waiver as to another regarding a different time.[322]