History, Theory, and Practice of the Electric Telegraph (Classic Reprint) George B. Prescott

Excerpt from History, Theory, and Practice of the Electric Telegraph

There is no subject upon which the American public should be better informed, and none, perhaps, in which it should feel greater pride, than in that of the foremost invention of Это и многое другое вы найдете в книге History, Theory, and Practice of the Electric Telegraph (Classic Reprint) (George B. Prescott)