""Elements of Construction for Electro-Magnets"" is a book written by Theodore Du Moncel in 1883. The book provides a comprehensive guide to the construction of electro-magnets, which are devices that use electricity to generate a magnetic field. The author begins by explaining the fundamental principles of electro-magnetism, including the relationship between electricity and magnetism. He then goes on to describe the different types of electro-magnets, such as cylindrical, horseshoe, and flat electro-magnets, and provides detailed instructions for their construction. The book also includes information on the materials used in electro-magnet construction, such as copper wire and iron cores, as well as tips for winding and connecting the wire. Additionally, the author discusses the practical applications of electro-magnets, including their use in telegraphy, electric motors, and scientific experiments. Overall, ""Elements of Construction for Electro-Magnets"" is a valuable resource for anyone interested in the history and practical applications of electro-magnetism.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.