The SciencesThe Control and Protection of Electric SystemsImmense Increase in Production of Electric Power and Difficulties that Have Been OvercomeBy Charles Proteus Steinmetz on January 22, 1916AdvertisementABOUT THE AUTHOR(S)Recent Articles by Charles Proteus SteinmetzHave we Reached Limit of Power Transmission?The Physiology of Light.--IPhotographic Investigation of a 150,000 Volt Power Discharge