Popular Telegraph Instructor
Автор: Arthur Potter
Издательство: Книга по Требованию
Год издания: 2015
Excerpt from Popular Telegraph Instructor: A Rudimentary Treatise on the Art of Telegraphing This work is written with a view to popularize the Art of Telegraphing and for the use of beginners, in the hope that a more general knowledge of the system may lead to more extended usefulness of this modern mode of communication. The acquisition of this art need not be looked...