Lessons in Wireless Telegraphy

"Lessons in Wireless Telegraphy" by Alfred Powell Morgan is an early twentieth-century guide designed to explain the workings of wireless telegraphy in clear, step-by-step lessons. The book intends to educate telegraph operators, not only in the practical aspects of sending and receiving messages, but also introduces the essential electrical theories and concepts that powered this emerging form of communication. It starts with the basics, like natural and artificial magnets, defining key terms and exploring the fundamental laws of magnetism to build a solid base for progressively more complex topics such as electric currents, induction coils, and batteries. This structured approach ensures that those who are new to the science can gain a complete and thorough understanding of wireless telegraphy.