Sunday, University of Rhode Island professor Scott Molloy will give a presentation on his new book, “Trolley Wars – Streetcar Workers on the Line.” The book traces the social dynamics of the first mass-transportation systems as they developed in Rhode Island in Gilded Age America. Molloy focuses on the laborers who operated the transit system, the changing ownership of the streetcar lines and the bond that grew between trolley crews and passengers. Molloy is the founder of the Rhode Island Labor History Society and a former RIPTA bus driver and labor official.