only from personnel records; that while in a "general sense" the overall safety of the personnel at the mill was under his direction and control, the details were not; and that the safety practices on the log pond at the time of the fatal accident were under the control of the night foreman, Roberts. Lisbon further testified that Nugent, the plant superintendent, and both Reynolds, the day foreman, and Roberts, the night foreman, had authority to requisition safety devices without consulting him; that such devices could include a mechanical resuscitator, which was not at the plant at that time; that there were no life preservers or life vests available at the float, nor was any such equipment intended for use by the men working on the float; thathad any such item been requested by the foreman and the order approved by Nugent, it would have been purchased; and that the foremen were supposed to instruct the employees as to safety methods.
 Defendant Nugent was also called under section 2055, and testified that he was in charge of the entire operation of the plant; that Jackson had been hired by Roberts with his approval. His testimony concerning lifesaving equipment and where it was placed about the pond was essentially the same as Lisbon's. Additionally, he testified to plant procedures concerning safety; that a committee composed of Lisbon, the foremen, and other key personnel periodically inspected the plant; and that at the time of the fatal accident they were following previously approved safety procedures. Nugent's testimony in