Discussion on “instruments and measurements,” at San Francisco, May 9, 1905

The idea of frequently calibrating and adjusting instruments, particularly integrating wattmeters, and providing a means for readily inserting standardizing instruments is to be highly commended. The use of modern potential and current transformers greatly simplifies the operations of standardizing and adds to the safety of the installation. The cupped-diamond bearing is a recent innovation; its use is highly recommended by those who have tried them.