Overview Copied from dealer description: Ralph R. Lawrence was an Associate Professor of Electrical Engineering at Harvard University and the Massachusetts Institute of Technology, as well as a member of the American Institute of Electrical Engineers. His book, Principles of Alternating Current Machinery, was first published in 1916 in New York by the McGraw-Hill Book Company. The present volume appears to be an early revision of a portion of the fust edition corrected by Jacob Young, who was likely a...