Hawkins electrical guide : questions, answers & illustrations : a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications : a practical treatise T Technology
Water softening and treatment, condensing plant, feed pumps and heaters for steam users and manufacturers T Technology
Report of the Committee on internal improvement, to the House of delegates of Maryland, February 10th, 1826. With the accompanying bills T Technology
